TY  - BOOK
AU  - Wright,Tony
TI  - Roles of teachers and learners
SN  - 0194371336 (pbk.)
U1  - 418.007WRI 
PY  - 1987///
CY  - Oxford, New York
PB  - Oxford University Press
KW  - Language and languages
KW  - Study and teaching
N1  - Includes bibliography
ER  -