TY  - BOOK
AU  - Gupta, P.K.  .
TI  - Methods in environmental analysis water, soil and air / 
SN  - 81-7754-308-3
U1  - G:55 
PY  - 2007///
CY  - Jodhpur : 
PB  - Agrobios (India) , 
KW  - Biology
ER  -