Gupta, P. K.  <br/><br/>
Methods in environmental analysis water, soil and air 
P. K. Gupta 
 - 2nd ed. 
 - Jodhpur  Agrobios  2018 
 - 443p. 
<br/><br/><label>ISBN: </label>978-81-7754-308-7 
<br/><br/><label>Dewey Class. No.: </label>333.7  / GUP