Freeman Bibliographical Database
| Identifier: | F364 |
| Date: | 1970 |
| Concise reference: | Darwin, C. R. 1970. On the tendency of species to form varieties. in Appleman, Philip ed. Darwin (No. F1624). pp. 81-97. New York: W. W. Norton. |
| Detailed reference: | 364. 1970 New York, W. W. Norton. Appleman, Philip editor Darwin (No. 1624). pp. 81-97. Darwin's contribution pp. 83-89. |