The economics of new educational media :
379.11ECO
The economics of new educational media : present status of research and trends / .- Paris :United Educational Scientific and Culrural Organizations ,1977.
200p.;22cm(Hb)
Note: includes glossary
ISBN:9231014234 Rs. 00.00
Cen Lib/Ret /851974/ 851974 / 0.00 /sign
