TY  - BOOK
AU  - Sharma, S. R.
TI  - Educational technology
SN  - 8174450777
U1  - 371.33 
PY  - 1998///
CY  - New Delhi
PB  - Mohit Publications
KW  - Education-Technology
N1  - Evolution of the education film: 1900-1950;
Educational radio: 1921-1950;
Development of instructional design: 1950-1980;
Educational broadcasting and educational technology: 1950-1980;
Educational technology and the information society: 1950-1980

ER  -