The Ecology & Environment Compendium :  For IAS Prelims General Studies CAST Paper 1,UPSC & State PSC EXAM / 

 - NewDelhi :  Disha Pub,  2017. 
 - 212 p,; 
<br/><br/><label>ISBN: </label>9789386323613 
<br/><br/><label>Subjects--Topical Terms: </label><br/>For IAS Prelims General Studies CAST Paper 1,UPSC & State PSC EXAM
<br/><br/><label>Dewey Class. No.: </label>574.5