TY  - BOOK
AU  - Betal M
AU  - Nagbiswas S C
ED  - West Bengal. Directorate of Agriculture
TI  - Random numbers and sample surveys in agriculture
U1  - 000SB:630 
PY  - 1974///
CY  - Calcutta
PB  - WB. Directorate of Agriculture
KW  - Agriculture
KW  - Random numbers
KW  - Sample surveys
ER  -