TY  - BOOK
ED  - UNESCO
TI  - The Multilateral exchange of educational audio-visual materials:  existing mechanisms and suggestions for the future / UNESCO
SN  - 9231016948
U1  - B 16.4 UNE -5858   
CY  - Paris, 1980.
KW  - Education - Teaching aids
KW  - EDU
N1  - ISBN 92-3-101694-8
ER  -