TY  - BOOK
AU  - Parimal mukhopadhyay
TI  - Theory and methods of survey sampling
SN  - 8120311248
U1  - 001.433 
PY  - 1998///
CY  - New Delhi
PB  - Prentice -Hall of India Pvt.Ltd
KW  - Random sampling
KW  - Surveys
ER  -