TY  - BOOK
AU  - Singh, SRK
AU  - Jha, SK
TI  - Feedback mechanism for sustainable agricultural extension
SN  - 8170194377
U1  - 634.31 S 643 F 
PY  - 2005///
CY  - New Delhi
PB  - Today & Tommorow
KW  - Extension
ER  -