TY  - GEN
AU  - Heinich, Robert
AU  - Molenda, Michael
AU  - Russel, James D.
TI  - Instructional media and the new technologies of instruction
SN  - 0-02-353020-0
PB  - Macmillan Publishing Company
KW  - EDUCATIONAL TECHNOLOGY
KW  - AUDIOVISUAL AIDS
KW  - EDUCATION
KW  - TEACHING AIDS
ER  -