TY  - BOOK
AU  - Singh, Daroga
AU  - Chaudhary, F.S.
TI  - Theory and analysis of sample survey designs
SN  - 0-85226-910-2
U1  - 519.243 
PY  - 1986///
CY  - New Delhi
PB  - New age International
KW  - Sample survey design
ER  -