Wallace Online Bibliographical Database
| Identifier: | S043 |
| Date: | 1858.08.20 |
| Concise reference: | Darwin, C. R. and A. R. Wallace. 1858. On the tendency of species to form varieties; and on the perpetuation of varieties and species by natural means of selection. Journal of the Proceedings of the Linnean Society of London. Zoology 3 (20 August): 46-50. |
