Verma, Agarwal,  <br/><br/>
Principles Of Ecology 

 - Kottayam  NATIONAL BOOKSTALL  1900 
<br/><br/><label>Subjects--Uniform Titles: </label>--General Stack
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology--Natural sciences & mathematicsGeneralia--Life sciences; biology
<br/><br/><label>Dewey Class. No.: </label>577  / VER-P