TY  - BOOK
ED  - Uttar Pradesh. Planning Research and Action Institute
TI  - Agricultural sample surveys in the Pilot Development project, Etawah: Ravi, 1956-1957
U1  - 000SD:630(54) 
PY  - 0000///-19
CY  - Lucknow
PB  - PRAI
KW  - Agriculture
KW  - Sample survey
N1  - Estimation of average yields of Wheat, Barley, Gram and Pea Crops
ER  -