TY  - BOOK
AU  - Islam,M.Nurul
TI  - An Introduction to sampling methods: theoryand applications 
SN  - 9843219767
U1  - 650.72 23
PY  - 2005///
CY  - Dhaka
PB  - Mullick & Brathers, 
KW  - Sampling methods
N1  - Includes Index
ER  -