| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| ¡En directo! A Beginning Course | 978-0-07-006950-3 (0-07-006950-6) | 1994 | Patricia Boylan · Dorothy A. Rissel · John A. Left · Martha E. Schaffer · Maria Morris |
| Workbook to Accompany En Directo! A Beginning Course, 2nd Edition | 978-0-07-006972-5 (0-07-006972-7) | 1994 | Lee Ann Grace · Patricia C. Boylan · Dorothy A Rissel · John A Left · Martha E Schaffer |