| Author: | Knowlton, Charles, 1800-1850 |
| Subject: | HB, HQ, Birth control, Malthusianism |
| Format: | Electronic text |
| Date issued: | 2011 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Fruits of Philosophy : A Treatise on the Population Question [electronic resource] / Charles Knowlton |