TY  - BOOK
AU  - Heinch Robert
AU  - Michael Molenda
AU  - James D. Russell
TI  - Instructional media and the new technologies of instruction
SN  - 002353060
AV  - LB 1028.3 .H45 1993 
PY  - 1993///
CY  - New York.
PB  - Oxford
KW  - Educational technology
KW  - Audio visual education
ER  -