TY  - BOOK
AU  - Ray, G. L
TI  - Extension communication and management
SN  - 8185421560
U1  - 630.717  
PY  - 1991///
CY  - Calcutta 
PB  - Naya Prokash 
KW  -  Agriculture and related technologies
KW  - Technology (Applied sciences)
KW  - Communication | Extension education
ER  -