TY  - BOOK
AU  - Eicher Jean-Claude.
AU  - David Hawkridge.
AU  - Emile Mcanany, et al.
TI  - The economics of new educational media: cost and effectiveness overview and synthesis 
T2  - The economics of new educational media
SN  - 923101997X
PY  - 1982///
CY  - Paris
PB  - The Unesco press
KW  - Economics
N1  - Includes references
ER  -