| GMD | Text |
| Language | Eng |
| Classification | 407.6 Ol4 |
| Publisher | Essex, Longmans, c1979 |
| Subject | Language and languages -- Ability testing.Language and languages -- Examinations. |
| Series | Applied linguistics and language study |
| Description | xx, 492 p. ; 21 cm. |
| ISBN | 9780582552944 |