T.P · Thomas A. Prendergast · Thomas F. Prendergast · Thomas P.
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Mastery Series. German | 978-1-141-13103-7 (1-141-13103-X) | 2009 |
| The Mastery Series: Manual for Learning Spanish | 978-1-141-47087-7 (1-141-47087-X) | 2010 |