| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Let's Speak English, Book 3 | 978-0-07-069513-9 (0-07-069513-X) | 1967 |
| Let's Speak English, Book 4 | 978-0-07-069514-6 (0-07-069514-8) | 1967 |
D G · D.W. · D. Wheeler · Dara G. Friedman-Wheeler · Donald G. Wheeler · G. W. · G. Wheeler