| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Barron's Clep 2008 | 978-0-7641-9320-0 | 2007 | William C. Doster · Elizabeth Schmid · Ruth Ward |
| Barron's CLEP | 978-0-7641-3639-9 | 2007 | William C. Doster · Elizabeth Schmid · Ruth Ward |
| How to Prepare for the CLEP | 978-0-7641-2027-5 | 2003 | William C. Doster · Elizabeth Schmid · Ruth Ward |
| How to Prepare for the CLEP with CD-ROM | 978-0-7641-7628-9 | 2003 | William C. Doster · Elizabeth Schmid · Ruth Ward · Louis Gotlib · Shirley O. Hockett · David Bock · Robert Bjork |
A. P. · A. W. · Adrian Poitras · Adrian W. · W.P.