TY  - BOOK
AU  - Heinich,Robert
AU  - Molenda,Michael
AU  - Russel,James D.
TI  - Instructional media and the new technologies of instruction
SN  - 9780023530609
AV  - LB1028.3 .H45 1993 
PY  - 1993///
CY  -  New York
PB  -  Maxwell Macmillan International, 
KW  -  Educational technology.
KW  -  Audio-visual education.
N1  - includes index
ER  -