TY  - BOOK
AU  - Singh,Sita Ram
TI  - Technological parameters in agricultural production function
SN  - 8170240263 
U1  - 630 21
PY  - 1986///
CY  - New Delhi : 
PB  - Ashish Pub. House, 
KW  - Agricultural innovations -- India -- Darbhanga (District)
ER  -