Peter Robert · Peter Roberts · Peter Robertson
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Student Study Guide to the Early Human World | 978-0-19-522162-6 (0-19-522162-1) | 2005 | |
| The Early Human World | 978-0-19-516157-1 (0-19-516157-2) | 2005 | Jill Rubalcaba |