Gupta P.K. 
Methods in Enviromental Analysis Water Soil and Air. Ed. 2 
 - Ed. 2 
 - Jodhpur  Agribios (India)  2009 
 - 443p 
Gupta P.K.: Methods in Enviromental Analysis Water Soil and Air. Ed. 2.  (Ed. 2)  Jodhpur.  Agribios (India), 2009. Rs. 1500.00--(631.4GUP)   
ENGLISH 
631.4  / GUP