Singhal, V. P. <br/><br/>
Samaja aevam‌ paryavaraṇa abhiyantriki / 
by V. P. Singhal 
 - New Delhi :  Standard Publishers Distributors,  2009. 
 - 683 p. :  ill. ;  21 cm. 
<br/><br/><label>ISBN: </label>8180145339 
<br/><br/><label>Subjects--Topical Terms: </label><br/>1. Environmental Engineering 
<br/><br/><label>Dewey Class. No.: </label>301.310973  / SIN/S