Johns Hopkins University Press · Smithsonian Books
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Animal Tool Behavior: The Use and Manufacture of Tools by Animals | 978-0-8018-9853-2 (0-8018-9853-6) | 2011 | Kristina R. Walkup · Benjamin B. Beck |
| Primates in Question: The Smithsonian Answer Book | 978-1-58834-176-1 (1-58834-176-3) | 2003 | Benjamin B. Beck |
Dr. Robert W. Shumaker · R. S. · Robert S. · Robert Shumaker · Robert W. · W.S.