TY  - BOOK
AU  - Venkatasubramanian,V.
TI  - Technology communication and AV aids in extension education
SN  - 8123407068
U1  - 371.33 23
PY  - 2001///
CY  - Chennai, India : 
PB  - New Century Book House , 
KW  - Distance education - Computer-assisted instruction
ER  -