TY  - BOOK
AU  - Swanson, Burton E. ; Bentz, Rober P. and Sofranko, Andrew J.
TI  - Improving agricultural extension: A reference manual
SN  - 8170354080, 9788170354086
PY  - 2005///
CY  - Delhi
PB  - FAO By Daya publishing house
ER  -