| Author: | Hertwig, Oscar, 1849-1922 |
| Subject: | QH, Developmental biology, Embryology, Genetics |
| Format: | Electronic text |
| Date issued: | 2011 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | The Biological Problem of To-day : Preformation Or Epigenesis? : The Basis of a Theory of Organic Development [electronic resource] / Oscar Hertwig |