| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Barron's Clep 2008 | 978-0-7641-9320-0 | 2007 | Elizabeth Schmid · Ruth Ward · Adrian W. Poitras |
| Barron's CLEP | 978-0-7641-3639-9 | 2007 | Elizabeth Schmid · Ruth Ward · Adrian W. Poitras |
| Clep 2008 | 978-0-7641-8452-9 | ||
| How to Prepare for the CLEP | 978-0-7641-2027-5 | 2003 | Elizabeth Schmid · Ruth Ward · Adrian W. Poitras |
| How to Prepare for the CLEP, College-Level Examination Program General Examinations | 978-0-7641-0476-3 | 1999 | Shirley O. Hockett · Laurie Rozakis |
| How to Prepare for the CLEP with CD-ROM | 978-0-7641-7628-9 | 2003 | Elizabeth Schmid · Ruth Ward · Adrian W. Poitras · Louis Gotlib · Shirley O. Hockett · David Bock · Robert Bjork |
C.D. · W.C. · William C. · William D. · William Doster