| O 300 | Armitage J. | Britannica Book of the Year 1964 | Encyclopaedia Britannica,LTD. London | 1964 |
| O 301 | Benton W. | Britannica Book of the Year 1965 | Encyclopaedia Britannica,inc.London | 1965 |
| O 302 | Benton W. | Britannica Book of the Year 1966 | Encyclopaedia Britannica,inc.London | 1966 |
| O 303 | Benton W. | Britannica Book of the Year 1967 | Encyclopaedia Britannica,inc.London | 1967 |
| O 304 | Benton W. | Britannica Book of the Year 1968 | Encyclopaedia Britannica,inc.London | 1968 |
| O 305 | Benton W. | Britannica Book of the Year 1969 | Encyclopaedia Britannica inc. London | 1969 |
| O 306 | Benton W. | Britannica Book of the Year 1970 | Encyclopaedia Britannica, inc.London | 1970 |
| O 307 | Asimov Isaac | The Intelligent Man°s Guide to Science | Basic Books,inc. New York | 1961 |
| O 308 | Asimov Isaac | The Intelligent Man°s Guide to Science | Basic Books.inc. New York | 1961 |
| O 309 | Seligman E.R.A. a kol. | Encyclopaedia of the Social Sciences | Macmillan and Co,LTD.London | 1930 |
| O 310 | Seligman E.R.A. a kol. | Encyclopaedia of the Social Sciences | Macmillan Co. New York | 1930 |
| O 311 | Seligman E.R.A. a kol. | Encyclopaedia of the Social Sciences | Macmillan and Co, London | 1930 |
| O 312 | Seligman E.R.A. a kol. | Encyclopaedia of the Social Sciences | Macmillan Co,New York | 1931 |
| O 313 | Seligman E.R.A. a kol. | Encyclopaedia of the Social Sciences | Mecmillan Co, London | 1931 |
| O 314 | Seligman E.R.A. a kol. | Encyclopaedia of the Social Sciences | Macmillan and Co. London | 1932 |
| O 315 | Seligman E.R.A. a kol. | Encyclopaedia of the Social Sciences | Macmillan Co. London | 1932 |
| O 316 | Seligman E.R.A. a kol. | Encyclopaedia of the Social Sciences | Macmillan and Co. London | 1932 |
| O 317 | Seligman E.R.A. a kol. | Encyclopaedia of the Social Sciences | Macmillan and Co. London | 1933 |
| O 318 | Seligman E.R.A. a kol. | Encyclopaedia of the Social Sciences | Macmillan and Co.London | 1933 |
| O 319 | Seligman E.R.A. a kol. | Encyclopaedia of the Social Sciences | Macmillan and Co. London | 1933 |
| O 320 | Seligman E.R.A. a kol. | Encyclopaedia of the Social Sciences | Macmillan and Co. London | 1934 |
| O 321 | Seligman E.R.A. a kol. | Encyclopaedia of the Social Sciences | Macmillan and Co. London | 1934 |
| O 322 | Seligman E.R.A. a kol. | Encyclopaedia of the Social Sciences | Macmillan and Co. London | 1934 |
| O 323 | Seligman E.R.A. a kol. | Encyclopaedia of the Social Sciences | Macmillan CO. London | 1935 |
| O 324 | Wallis W.A. a kol | International Encyclopedia of the Social Sciences 1. | Macmillan Co London | 1968 |
| O 325 | Wallis W.A. a kol. | International Encyclopedia of the Social Sciences 2. | Macmillan Co. London | 1968 |
| O 326 | Wallis W.A. a kol. | International Encyclopedia of the Social Sciences 3. | Macmillan Co. London | 1968 |
| O 327 | Wallis W.A. a kol. | International Encyclopedia of the Social Sciences 4. | Macmillan Co. London | 1968 |
| O 328 | Wallis W.A. a kol. | International Encyclopedia of the Social Sciences 5. | Macmillan Co. London | 1968 |
| O 329 | Wallis W.A. a kol. | International Encyclopedia of the Social Sciences 6. | Macmillan Co. London | 1968 |
| O 330 | Wallis W.A. a kol. | International Encyclopedia of the Social Sciences 7. | Macmillan Co. London | 1968 |
| O 331 | Wallis W.A. a kol. | International Encyclopedia of the Social Sciences 8. | Macmillan Co. London | 1968 |
| O 332 | Wallis W.A. a kol. | International Encyclopedia of the Social Sciences 9. | Macmillan Co. London | 1968 |
| O 333 | Wallis W.A. a kol. | International Encyclopedia of the Social Sciences 10. | Macmillan Co. London | 1968 |
| O 334 | Wallis W.A. a kol. | International Encyclopedia of the Social Sciences 11. | Macmillan Co. London | 1968 |
| O 335 | Wallis W.A. a kol. | International Encyclopedia of the Social Sciences 12 | Macmillan Co. London | 1968 |
| O 336 | Wallis W.A. a kol. | International Encyclopedia of the Social Sceinces 13. | macmillan Co. London | 1968 |
| O 337 | Wallis W.A. a kol. | International Encyclopedia of the Social Sciences 14 | Macmillan Co. London | 1968 |
| O 338 | Wallis W.A. a kol. | International Encyclopedia of the Social Sciences 15 | Macmillan Co. London | 1968 |
| O 339 | Wallis W.A. a kol. | International Encyclopedia of the Social Sciences 16 | Macmillan Co. London | 1968 |
| O 340 | Wallis W.A. a kol. | International Encyclopedia of the Social Sciences 17 | Macmillan Co. London | 1968 |
| O 341 | Edwards Paul | The Encyclopedia of Philosophy 1. | Macmillan Co. London | 1967 |
| O 342 | Edwards Paul | The Encyclopedia of Philosophy 3. | Macmillan Co. London | 1967 |
| O 343 | Edwards Paul | The Encyclopedia of Philosophy 4. | Macmillan Co. London | 1967 |
| O 344 | Edwards Paul | The Encyclopedia of Philosophy 5. | Macmillan Co. London | 1967 |
| O 345 | Edwards Paul | The Encyclopedia of Philosophy 6. | macmillan Co. London | 1967 |
| O 346 | Edwards Paul | The Encyclopedia of Philosophy 7. | Macmillan Co. London | 1967 |
| O 347 | Edwards Paul | The Encyclopedia of Philosophy 8. | Macmillan Co. London | 1967 |
| O 348 | Webster-A.Merriam | Webster°s Third New International Dictionary...A-G | Encyclopaedia Britannica | 1986 |
| O 349 | Webster-A.Merriam | Webster°s Third New International Dictionary...H-R | Encyclopaedia Britannica | 1986 |
| O 350 | Webster-A.Merriam | Webster°s Third New International Dictionary... S-Z | Encyclopaedia Britannica | 1986 |
| O 351 | Uhlmann A.M. | Meyers Neues Lexikon 1. | VEB BI Leipzig | 1961 |
| O 352 | Uhlmann A.M. | Meyers Neues Lexikon 2. | VEB BI Leipzig | 1962 |
| O 353 | Uhlmann A.M. | Meyers Neues Lexikon 3. | VEB BI Leipzig | 1962 |
| O 354 | Uhlmann A.M. | Meyers Neues Lexikon 4. | VEB BI Leipzig | 1962 |
| O 355 | Uhlmann A.M. | Meyers Neues Lexikon 5. | VEB BI Leipzig | 1963 |
| O 355a | Uhlmann A.M. | Meyers Neues Lexikon 5. | VEB BI Leipzig | 1963 |
| O 356 | Uhlmann A.M. | Meyers Neues Lexikon 6. | VEB BI Leipzig | 1963 |
| O 356a | Uhlmann A.M. | Meyers Neues Lexikon 6. | VEB BI Leipzig | 1963 |
| O 357 | Uhlmann A.M. | Meyers Neues Lexikon 7. | VEB BI Leipzig | 1964 |
| O 357a | Uhlmann A.M. | Meyers Neues Lexikon 7. | VEB BI Leipzig | 1964 |
| O 358 | Uhlmann A.M. | Meyers Neues Lexikon 8. | VEB BI Leipzig | 1964 |
| O 358a | Uhlmann A.M. | Meyers Neues Lexikon 8. | VEB BI Leipzig | 1964 |
| O 359 | Göschel Heinz | Meyers Neues Lexikon 3. | VEB BI Leipzig | 1972 |
| O 360 | Göschel Heinz | Meyers Neues Lexikon 4 | VEB BI Leipzig | 1972 |
| O 361 | Göschel Heinz | Meyers Neues Lexikon 5. | VEB BI Leipzig | 1973 |
| O 362 | Göschel Heinz | Meyers Neues Lexikon 6 | VEB BI Leipzig | 1973 |
| O 363 | Göschel Heinz | Meyers Neues Lexikon 7. | VEB BI Leipzig | 1973 |
| O 364 | Göschel Heinz | Meyers Neues Lexikon 8. | VEB BI Leipzig | 1974 |
| O 365 | Göschel Heinz | Meyers Neues Lexikon 9. | VEB BI Leipzig | 1974 |
| O 366 | Göschel Heinz | Meyers Neues Lexikon 10. | VEB BI Leipzig | 1974 |
| O 367 | Göschel Heinz | Meyers Neues Lexikon 11. | VEB BI Leipzig | 1975 |
| O 368 | Göschel Heinz | Meyers Neues Lexikon 12 | VEB BI Leipzig | 1975 |
| O 369 | Göschel Heinz | Meyers Neues Lexikon 13. | VEB BI Leipzig | 1976 |
| O 370 | Göschel Heinz | Meyers Neues Lexikon 14. | VEB BI Leipzig | 1976 |
| O 371 | Göschel Heinz | Meyers Neues Lexikon 15. | VEB BI Leipzig | 1977 |
| O 372 | Göschel Heinz | Meyers Neues Lexikon - register 16. | VEB BI Leipzig | 1978 |
| O 373 | Göschel Heinz | Meyers Neues Lexikon - atlas,karten 17. | VEB BI Leipzig | 1978 |
| O 374 | Göschel Heinz | Meyers Neues Lexikon - atlas, register 18. | VEB BI Leipzig | 1978 |
| O 375 | Ba | Meyers Lexikon A - Z | VEB BI Leipzig | 1975 |
| O 376 | Brockhaus F.A. | Der Grosse Brockhaus 1. | Leipzig | 1928 |
| O 377 | Brockhaus F.A. | Der Grosse Brockhaus 2. | Leipzig | 1929 |
| O 378 | Brockhaus F.A. | Der Grosse Brockhaus 3. | Leipzig | 1929 |
| O 379 | Brockhaus F.A. | Der Grosse Brockhaus 4. | Leipzig | 1930 |
| O 380 | Brockhaus F.A. | Der Grosse Brockhaus 5. | Leipzig | 1930 |
| O 381 | Brockhaus F.A. | Der Grosse Brockhaus 6. | Leipzig | 1930 |
| O 382 | Brockhaus F.A. | Der Grosse Brockhaus 7. | Leipzig | 1930 |
| O 383 | Brockhaus F.A. | Der Grosse Brockhaus 8. | Leipzig | 1931 |
| O 384 | Brockhaus F.A. | Der Grosse Brockhaus 9. | Leipzig | 1931 |
| O 385 | Brockhaus F.A. | Der Grosse Brockhaus 10. | Leipzig | 1931 |
| O 386 | Brockhaus F.A. | Der Grosse Brockhaus 11. | Leipzig | 1932 |
| O 387 | Brockhaus F.A. | Der Grosse Brockhaus 12. | Leipzig | 1932 |
| O 388 | Brockhaus F.A. | Der Grosse Brockhaus 13. | Leipzig | 1932 |
| O 389 | Brockhaus F.A. | Der Grosse Brockhaus 14. | Leipzig | 1933 |
| O 390 | Brockhaus F.A. | Der Grosse Brockhaus 15. | Leipzig | 1933 |
| O 391 | Brockhaus F.A. | Der Grosse Brockhaus 16. | Leipzig | 1933 |
| O 392 | Brockhaus F.A. | Der Grosse Brockhaus 17. | Leipzig | 1934 |
| O 393 | Brockhaus F.A. | Der Grosse Brockhaus 18. | Leipzig | 1934 |
| O 394 | Brockhaus F.A. | Der Grosse Brockhaus 19. | Leipzig | 1934 |
| O 395 | Brockhaus F.A. | Der Grosse Brockhaus 20. | Leipzig | 1935 |