| title | media type | ISBN-13 | year of publication |
|---|---|---|---|
| 3 2 1 Trois Contes, Deux Essais, Une Comedie | Paperback | 978-0-13-920488-3 | 1966 |
| Foreign Language Learning | " | 978-0-13-326371-8 | 1970 |
| Foreign Language Learning | Hardcover | 978-0-13-326389-3 | 1970 |
| Practice-centred Teacher Training: French | Paperback | 978-0-245-50910-0 | 1972 |
| Programmed Dictionary for Masterpieces of French Literature | " | 978-0-13-730044-0 | 1966 |
| Reading German Fluently | Hardcover | 978-0-13-753541-5 | 1970 |
| Speaking German | " | 978-0-13-825794-1 | 1969 |
L.P. · R. L · R L Politzer · R. P. · Robert L. · Robert P. · Robert Politzer