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1. The economics of new educational media :   Publication: Paris : Unesco, 1977 . 200 p. : Date:1977 Availability: Copies available: Turkeyen Campus Education & Humanities [LB1028.3 E27] (1), Actions: Add to cart
2. The Economics of new educational media.   Publication: Paris : Unesco, 1980 . 316 p. , "Prepared with the assistance of the International Council for Educational Media." Date:1980 Availability: Copies available: Centre for Communication Studies [LB1028.3 .E27] (1), Actions: Add to cart No cover image available No cover image available