| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| One Tree Hunks: The Unauthorized Biographies of Chad Michael Murray and James Lafferty | 978-0-345-47952-5 (0-345-47952-1) | 2004 | |
| World Cultures | 978-0-382-32180-1 (0-382-32180-4) | 1995 | Michael B Petrovich · Arthur Roberts · Michael Petrovich |
C.R. · Christa Roberts · Christian Robert · Christine N. Roberts · Christine Rüffert · Christopher Roberts