Freeman Bibliographical Database
| Identifier: | F1787 |
| Date: | 1880.01.08 |
| Concise reference: | Darwin, C. R. 1880. The sexual colours of certain butterflies. Nature. A Weekly Illustrated Journal of Science 21 (8 January): 237. |
| Detailed reference: | 1787. 1880 The sexual colours of certain butterflies. Nature, London., vol. 21, p. 237. January 8. Dated December 16, 1879. |