TY  - BOOK
AU  - Singh, Daroga.
TI  - theory and analysis of sample survey designs / 
SN  - 0 85226 910 2
U1  - B2817:u 
PY  - 1986///
CY  - New Delhi : 
PB  - Wiley Eastern Limited , 
KW  - Successive Samling
ER  -