TY  - BOOK
AU  - Gupta, P. K.
TI  - Methods in environmental analysis water, soil and air
SN  - 9788177543087
U1  - 333.7 GUP 
PY  - 2011///
CY  - Jodhpur
PB  - Agrobios (India)
N1  - Includes bibliographical references
ER  -