TY  - GEN
AU  - Swanson, Burton E
TI  - Agricultural Extension : a reference Manual
SN  - 92-5-101504-X
U1  - 630.7150202 SWA 
CY  - Rome, FAO
KW  - Agricultural extension / Extension Teaching Methods / Extension Adminstration / ExtensionCommunication / Extension Compaigns
ER  -