| GMD | Text |
| Language | Eng |
| Classification | 370.72 B413 |
| Publisher | Buckingham ; Philadelphia, Open University Press., 1999 |
| Edition | 3rd ed. |
| Subject | Education -- Research.Education -- Research -- Methodology.Social sciences -- Research.Social sciences -- Research -- Methodology.Independent study. |
| Description | ix, 230 p. ; 22 cm. |
| ISBN | 9780335203888 |