| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Cracking the TOEFL IBT with Audio CD, 2007 Edition | 978-0-375-76556-8 (0-375-76556-5) | 2006 | Sean Kinsell |
| Cracking the TOEFL iBT with CD, 2011 Edition | 978-0-375-42974-3 (0-375-42974-3) | 2010 | " |
| Cracking the TOEFL with Audio CD, 2006 | 978-0-375-76427-1 (0-375-76427-5) | 2005 | " |
D. P. · Douglas Park · Douglas Pearce · Douglas Peariso · Douglas Peers · Douglas Peirce · Douglas Perez · Douglas Porch · Douglas Powers