Freeman Bibliographical Database
| Identifier: | F1900.19 |
| Date: | 2012 |
| Concise reference: | Burkhardt, F., J. A. Secord et al eds. 2012. The correspondence of Charles Darwin. Cambridge: Cambridge University Press. vol. 19: 1871. |
| Identifier: | F1900.19 |
| Date: | 2012 |
| Concise reference: | Burkhardt, F., J. A. Secord et al eds. 2012. The correspondence of Charles Darwin. Cambridge: Cambridge University Press. vol. 19: 1871. |