Freeman Bibliographical Database
| Identifier: | F1900.17 |
| Date: | 2009 |
| Concise reference: | Burkhardt, F., J. A. Secord et al eds. 2009. The correspondence of Charles Darwin. Cambridge: Cambridge University Press. vol. 17: 1869. |
| Identifier: | F1900.17 |
| Date: | 2009 |
| Concise reference: | Burkhardt, F., J. A. Secord et al eds. 2009. The correspondence of Charles Darwin. Cambridge: Cambridge University Press. vol. 17: 1869. |