"Encyclopaedia of Water Conservation ,purification and management" 
Encyclopaedia of Water Conservation purification and management 
 -  "v, 244p. :22cm.hbk" 
 - New Delhi  Black Prints Excellence in Academic Publishing  2016 
<br/><br/><label>ISBN: </label>9789382036821 
<br/><br/><label>Dewey Class. No.: </label>631.7 ALE.1  / 22.631.7 ALE.0.1