| Title: | The Variation of Animals and Plants Under Domestication |
| Author: | Darwin, Charles, 1809-1882 |
| Note: | 2 volumes: London: J. Murray, 1868 |
| Link: | Volume I: Gutenberg text, illustrated HTML, and page images |
| Link: | Volume II: Gutenberg text |
| Stable link here: | http://onlinebooks.library.upenn.edu/webbin/book/lookupid?key=olbp48414 |
| Subject: | Variation (Biology) |
| Subject: | Domestic animals |
| Subject: | Plants, Cultivated |
| Call number: | QH365 .V2 1868 |