TY  - BOOK
AU  - Mangal, S K 
AU  - Mangal, Uma
TI  - Audio Visual Education
SN  - 8170631343 (Rs.80.00) PB
U1  - 370.024 6 MAN 21st
PY  - 2001/// PB
CY  - New Delhi
PB  - Arya Book Depot
KW  - Education Technology
ER  -