Freeman Bibliographical Database
| Identifier: | A3860 |
| Date: | 1869 |
| Concise reference: | Coues, Elliott. 1869. On variation in the genus Aegiothus. Proceedings of the Academy of Natural Sciences of Philadelphia, 21: 180-189. [Darwin Pamphlet Collection] |
| Identifier: | A3860 |
| Date: | 1869 |
| Concise reference: | Coues, Elliott. 1869. On variation in the genus Aegiothus. Proceedings of the Academy of Natural Sciences of Philadelphia, 21: 180-189. [Darwin Pamphlet Collection] |