TY  - BOOK
AU  - Singh,Daulat.
AU  - Singh,V.K.
TI  - Constraints to production of major crops in U.P
U1  - 630 
PY  - 1983///
CY  - Kanpur
PB  - U.P. Society of Extension and Education
KW  - Agriculture
KW  - Constraints Production
ER  -