Freeman Bibliographical Database
| Identifier: | F3447 |
| Date: | 1869--1972 |
| Concise reference: | Darwin, C. R. 1972. [Letter to William R. Greg, 1869]. In P. J. Vorzimmer, Charles Darwin: The years of controversy: The Origin of Species and its critics 1859-82. London: University of London Press Ltd., p. 264. |