NEXT IAS <br/><br/>
Ecology and environment  Civil services examination 

 - New Delhi  Made easy  2018 
 - 370 p. 
<br/><br/><label>ISBN: </label>9789351473893 
<br/><br/><label>Standard No.: </label>120509 
<br/><br/><label>Subjects--Index Terms: </label>General- competitive exams- IAS exams 
<br/><br/><label>Dewey Class. No.: </label>577.2  / ECO