| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1990 | 978-0-923176-09-9 | Southwestern Press · Inc. | Spanish on the Job |
| 2000 | 978-0-923176-10-5 | English on the Job: (Ingles En El Trabajo) | |
| 2007 | 978-0-923176-11-2 | Southwestern Press Inc. | Speak Spanish on the Job (How to Instantly) (English and Spanish Edition) |
| '' | 978-0-923176-12-9 | '' | Speak English on the Job (Hable Ingles en el Trabajo) (Spanish and English Edition) |