| Other Title | Keep thinking - graded exercises in anticipation and prediction /  | 
| GMD | Book | 
| Language | E | 
| Classification | 428.2 HUT | 
| Publisher | Hodder and Stoughton,, 1985 | 
| Subject | language practice | 
| Topic | language practice | 
| Description | iv, 60 ;24.5 cm.; | 
| ISBN | 0-340-36446-7 |