| GMD | Text |
| Language | Eng |
| Classification | 401.9 L941 |
| Publisher | Pergamon Press, Oxford, c1982 |
| Subject | Language and languages -- Study and teaching -- Social aspects.Sociolinguistics. |
| Series | Language teaching methodology series |
| Description | x, 196 p. : ill. ; 21 cm. |
| ISBN | 9780080286686 |