TY  - BOOK
AU  - Davies,Ivor K.
AU  - Hartley,James
TI  - Contributions to an educational technology
SN  - 0408701382
AV  - MED LB1028.3 C664 
PY  - 1972///-1978
CY  - London
PB  - Butterworths
KW  - Educational technology
N1  - Vol. 2, ed. by J. Hartley and I. K. Davies, published by Kogan Page, London, and Nichols Pub. Co., New York
ER  -