The Economics of new educational media /
- Paris : Unesco, 1980.
- v.2, 316 p. 23 cm.
- (Educational methods and techniques ; 1) .
"Prepared with the assistance of the International Council for Educational Media."
Includes bibliographies.
v. 1. Present status of research and trends -- v. 2. Cost and effectiveness -- v. 3. Cost and effectiveness overview and synthesis.
9231014234 (pbk. : v. 1)
Educational technology.--Cost and effectiveness.
LB1028.3 / E26