Objective questions environment & ecology :for civil services preliminary examination 
MAJID HUSAIN 
 - 2nd ed 
 - NewDelhi  Access Publishing India Pvt. Ltd  2016 
 - viii,342 p. 
<br/><br/> GS Paper -I 
<br/><br/><label>ISBN: </label>9789383454624 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment and Ecology
<br/><br/><label>Dewey Class. No.: </label>333.7076 HUS