Kumar, A <br/><br/>
Basic of environmental studies 

 - New Delhi  :  New Age Internationl,  2008. 
 - 130 
<br/><br/><label>ISBN: </label>978-8-224-2616-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Civil Engineering 
<br/><br/><label>Dewey Class. No.: </label>628  / KUM