| Author: | Haeckel, Ernst, 1834-1919 |
| Subject: | QH, Religion and science, Evolution -- History |
| Format: | Electronic text |
| Date issued: | 2016 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | Last Words on Evolution : A Popular Retrospect and Summary [electronic resource] / Ernst Haeckel |