TY  - BOOK
AU  - Venkatasubramanian, V. 
TI  - Technology communication and AV AIDS in extension education
SN  - 8123407068
U1  - 630.7153 
PY  - 2001///
CY  - Chennai 
PB  - New Century Book House 
KW  - Agricultural extension workers
KW  - Education
KW  - Audio visual aids
KW  - Educational technology
N1  - Includes bibliographical references, glossary and index
ER  -