| Author: | Darwin, Charles, 1809-1882 |
| Subject: | QH, Evolution (Biology), Natural selection |
| Format: | Electronic text |
| Date issued: | 2007 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | On the Origin of Species by Means of Natural Selection [electronic resource] / Charles Darwin |