Freeman Bibliographical Database
| Identifier: | F1900.7 |
| Date: | 1991 |
| Concise reference: | Burkhardt, F., S. Smith et al eds. 1991. The correspondence of Charles Darwin. Cambridge: Cambridge University Press. vol. 7: 1858-1859. |
| Identifier: | F1900.7 |
| Date: | 1991 |
| Concise reference: | Burkhardt, F., S. Smith et al eds. 1991. The correspondence of Charles Darwin. Cambridge: Cambridge University Press. vol. 7: 1858-1859. |