TY  - BOOK
AU  - Gurumani, N.
TI  - An introduction to biostatistics
SN  - 8180940063
U1  - 570.151 95 
PY  - 2005///
CY  - Chennai
PB  - MJP publishers
KW  - Population and sample
KW  - Variable
KW  - Collection of data
KW  - Sampling methods
ER  -