Verma, P. S. <br/><br/>
Animal ecology  environmental biology 

 - 3rd ed. 
 - New Dilhi  S.Chand  & Company Ltd  1982 
 - vii,266p.  21cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology<br/>Biology
<br/><br/><label>Dewey Class. No.: </label>577  / VER