Anil Tyagi <br/><br/>
Trueman's UGC-NET Environmental science  

 - 2013, 2015 & 2016  
 - New Delhi  Danika publishing company  2013 
 -  568+model questions 
<br/><br/><label>ISBN: </label>8189301446 
<br/><br/><label>Dewey Class. No.: </label>371.26  / ANI