TY  - BOOK
AU  - A W Van Den Ban
TI  - Agricultural Extension
SN  - 81-239-0576-9
U1  - 302.2 VAN/AG 
PY  - 1998///
CY  - New Delhi
PB  - C B S Publishers & Distributers
KW  - introduction
KW  - extension education
KW  - extension ethics
ER  -