TY  - BOOK
AU  - Coppen,Helen Elizabeth
TI  - Aids to teaching and learning,
T2  - The Commonwealth and International Library. Education and Educational Research Division
SN  - 0080129048
AV  - LB1043 .C656 1969
U1  - 371.3078 19
PY  - 1969///]
CY  - Oxford, New York
PB  - Pergamon Press
KW  - Teaching
KW  - Aids and devices
N1  - Bibliography: p. 225-230
ER  -