TY  - BOOK
AU  - Gupta, P. K.
TI  - Methods in environmental analysis water soil and air
SN  - 81-7754-308-3
AV  - TD 191.5 .G87 2009
PY  - 2009///
CY  - New Delhi
PB  - Agrobios
N1  - Includes references
ER  -