TY  - BOOK
AU  - Swanson, Burton E 
ED  - Bentz, Robert P 
ED  - Sofranko, Andrew J 
TI  -  Improving agricultural extension : a reference manual
SN  - 8170354080
U1  - 630 
PY  - 1997///
CY  - Rome : 
PB  - Food and Agriculture Organization of the United Nations
ER  -