TY  - BOOK
AU  - Coppen,Helen
TI  - Aids to teaching and learning
SN  - 08 01205 6
AV  - LB1043.C656 
PY  - 1969///
CY  - Oxford
PB  - Pergamon Press
KW  - Teaching
KW  - Aids and devices
N1  - Includes bibliographies
ER  -