Audiovisual instruction (oct 1973 - mar 1979)
Audiovisual instruction (oct 1973 - mar 1979)
- Washington, D.C. Association for Educational Communications and Technology 1973
- 204 p. : ill. ; 27 cm. 27 cm
Audiovisual
06.08.3 AEC USA 1973
Audiovisual
06.08.3 AEC USA 1973