Freeman Bibliographical Database
| Identifier: | F1900.23 |
| Date: | 2015 |
| Concise reference: | Burkhardt, F., J. A. Secord et al eds. 2015. The correspondence of Charles Darwin. Cambridge: Cambridge University Press. vol. 23: 1875. |
| Identifier: | F1900.23 |
| Date: | 2015 |
| Concise reference: | Burkhardt, F., J. A. Secord et al eds. 2015. The correspondence of Charles Darwin. Cambridge: Cambridge University Press. vol. 23: 1875. |