| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| 501 French Verbs | 978-0-7641-2429-7 (0-7641-2429-3) | 2003 | Christopher, Ph.D. Kendris |
| 501 Spanish Verbs: Fully Conjugated in All the Tenses in A New Easy-To-Learn Format Alphabetically Arranged | 978-0-7641-2428-0 (0-7641-2428-5) | 2003 | Christopher, Ph.D Kendris |