Freeman Bibliographical Database
| Identifier: | F170 |
| Date: | 1967 |
| Concise reference: | Darwin, C. R. 1967. Journal of Researches [in Bulgarian]. Translated by Ljuben Secanov. Sofia: Nauka i izkustvo. |
| Detailed reference: | 170. 1967 Sofia, Nauka i izkustvo. Translated by Ljuben Secanov. 572 pp. BULGARIAN |