Gopal, Krishna  . <br/><br/>
Water and waste water /  
by Krishna Gopal. 
 - New Delhi :   A P H Publishing Corporation ,   2007 
 - 173p :  
<br/><br/><label>ISBN: </label>978-81-313-0262-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wastewater
<br/><br/><label>Dewey Class. No.: </label>D85698  / P7