Freeman Bibliographical Database
| Identifier: | F1900.9 |
| Date: | 1994 |
| Concise reference: | Burkhardt, F., D. Porter et al eds. 1994. The correspondence of Charles Darwin. Cambridge: Cambridge University Press. vol. 9: 1861. |
| Identifier: | F1900.9 |
| Date: | 1994 |
| Concise reference: | Burkhardt, F., D. Porter et al eds. 1994. The correspondence of Charles Darwin. Cambridge: Cambridge University Press. vol. 9: 1861. |