| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| CLEP® Western Civilization I Book + Online | 978-0-7386-1048-1 (0-7386-1048-8) | 2012 | |
| CLEP Western Civilization I The Best Test Preparation for the CLEP Western Civilization I | 978-0-7386-0110-6 (0-7386-0110-1) | 2005 | CLEP |
| CLEP Western Civilization I w/ CD-ROM | 978-0-7386-0131-1 (0-7386-0131-4) | 2007 | " |
D. M. · (D-R) · D. Robert · Dr. Robert · Dr. Z · R. M. · R Z · R Ziomkowski · Robert M. · Robert M Ziomkowski