| Author: | Goddard, Henry Herbert, 1866-1957 |
| Subject: | HQ, Mental retardation, Heredity, Human, People with mental disabilities |
| Format: | Text |
| Date issued: | 2017 |
| Language: | English |
| Publisher: | Project Gutenberg, |
| Rights: | Public domain in the USA. |
| Download link: | The Kallikak Family : A Study in the Heredity of Feeble-Mindedness [electronic resource] / Henry Herbert Goddard |