G.B. · R. B · Robert B. · Robert G.
| title | ISBN-13 | year of publication |
|---|---|---|
| Access to English As a Second Language | 978-0-07-007395-1 | 1973 |
| Access to English as a Second Language: Book 1 | 978-0-07-007396-8 | 1973 |
| Access to English as a Second Language: Book 2 | 978-0-07-007400-2 | 1974 |
| Access to English As a Second Language: Book Two | 978-0-07-007399-9 | 1974 |