VERMA (P S);AGARWAL (V K) <br/><br/>
Environmental biology: principles of ecology 

 - New Delhi  S Chand & Company Ltd  2017 
 - viii,591  PB 
<br/><br/><label>ISBN: </label>978-81-219-0859-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology
<br/><br/><label>Dewey Class. No.: </label>574.5   / VERE