TY  - BOOK
AU  - Sampling ,statistics...
AU  - Gunawardhana,H.D
TI  - Training Seminar cum workshop on Sampling ,statistics and standardization in chemical analysis and environmental management
U1  - 540 SAM 
PY  - 2005///
CY  - Colombo
PB  - Institute of chemistry
KW  - seminar reports,statistics
N2  - Training Seminar Jan.25 ,2005
ER  -