TY  - BOOK
AU  - Heinich,Robert
TI  - Instructional media : and the new technologies of instruction
SN  - 0023528907
U1  - 371.3078 HEI 
PY  - 1982///.
CY  - New York : 
PB  - The Macmillan Company, 
KW  - Media and instruction
KW  - Visual literacy
KW  - Auto media
ER  -