Freeman Bibliographical Database
| Identifier: | F2399 |
| Date: | 1988 |
| Concise reference: | Darwin, C. R. 1988. Journal of Researches [in Bulgarian]. Translated by Ljuben Secanov. Sofia: Nauka i izkustvo. |
| Identifier: | F2399 |
| Date: | 1988 |
| Concise reference: | Darwin, C. R. 1988. Journal of Researches [in Bulgarian]. Translated by Ljuben Secanov. Sofia: Nauka i izkustvo. |