TY  - BOOK
AU  - Rao,Poduri S.R.S
TI  - Sampling methodologies: with applications 
SN  - 158488214x
PY  - 2000///
CY  - Boca Raton, Fla.
PB  - Chapman & Hall/CRC
KW  - Social sciences
KW  - Sample size
KW  - Data collection
KW  - Research design
KW  - methods
ER  -