Freeman Bibliographical Database
| Identifier: | F354 |
| Date: | 1930 |
| Concise reference: | Darwin, C. R. 1930. On the tendency of species to form varieties. In Sarton, George, Discovery of the theory of natural selection. Isis, 14: 133-136, 145-162. |
| Detailed reference: | 354. 1930 In Sarton, George Discovery of the theory of natural selection. Isis, Bruges, vol. 14, pp. 133-136, 45-62. Facsimile of F348. [109 |