Singh, Surendra <br/><br/>
Paryavaran pardhusan (Hindi) 
Surendra Singh 
 - New Delhi  Ishika  publishing house  2013 
 - 192p. 
<br/><br/><label>ISBN: </label>9788189471897  Rs 695 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EVS<br/>Environmental studies
<br/><br/><label>Dewey Class. No.: </label>628.5  / SIN