TY  - BOOK
AU  - Mukhopadhyay P
TI  - Theory and methods of survey sampling
SN  - 8120311248
U1  - B2817, N8 
PY  - 1998///
CY  -  New Delhi 
PB  - Prentice Hall        
KW  -  Mathematics
KW  - Sampling
ER  -