| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1996 | 978-0-9651418-0-2 | Stephen Thompson | Spanish Verb Conjugations for Language Proficiency: A Complete and Systematic Guide to the Conjugation of 15000 Spanish Verbs |
| 1998 | 978-0-9651418-1-9 | Stephen J. Thompson | 15,000 Spanish Verbs: Fully Conjugated in All the Tenses Using Pattern Verbs |
| 2000 | 978-0-9651418-2-6 | Stephen J., Ph.D. Thompson | 15,000 Spanish Verbs Fully Conjugated in All the Tenses Using Pattern Verbs, Second Edition (English and Spanish Edition) |