Tyagi, Anil. <br/><br/>
UGC NET/SET (National eligibility test/State eligibility test for JRF and eligibility test for lectureship environmental science /  
Anil Tyagi and Virendra Singh. 
 - /   . 
 - New Delhi :   Danika Publishing ,   2012. 
 - Verious pagination :   ill.,fig ;   24cm .  
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<br/><br/><label>ISBN: </label>8189301446  RS300.00 
<br/><br/><label>Subjects--Index Terms: </label>ENVIRONMENTAL SCIENCE-GUIDE BOOK 
<br/><br/><label>Dewey Class. No.: </label>363.7076  / TYA/U