| Author's List |
| title | creator | language | description | tableOfContents | contributor | subject | created |
| The Speech of Monkeys | Garner, Richard Lynch, 1848-1920 | en | 2010-08-13 | ||||
| The Mental Life of Monkeys and Apes A Study of Ideational Behavior | Yerkes, Robert M., 1876-1956 | en | 2004-01-01 |