TY  - BOOK
AU  - Heinich,Robert
AU  - Molenda,Michael
AU  - Russell,James D.
TI  - Instructional media, and the new technologies of instruction
SN  - 0471368938
PY  - 1982///
CY  - New York
PB  - John Wiley & Sons
KW  - Educational technology
N1  - Includes index
ER  -