Freeman Bibliographical Database
| Identifier: | A3739 |
| Date: | 1870 |
| Concise reference: | Carvalho, S. N. 1870. The difficulties of natural selection. Nature 3 (24 November): 66. [Darwin Pamphlet Collection] |
| Identifier: | A3739 |
| Date: | 1870 |
| Concise reference: | Carvalho, S. N. 1870. The difficulties of natural selection. Nature 3 (24 November): 66. [Darwin Pamphlet Collection] |