| GMD | Text |
| Language | Eng |
| Classification | 418.007 R386 |
| Publisher | New York, Longman, c1988 |
| Subject | English language -- Study and teachings -- Foreign speakers.Language and languages -- Study and teaching.Second language acquisition. |
| Description | xviii, 426 p. : ill. ; 24 cm. |
| ISBN | 9780801300271 |