May Robert M ed <br/><br/>
Theoretical ecology:Principles and applications 

 - Toronto  W B Saunders  1976 
 - viii,317p.;24.5cm 
<br/><br/><label>ISBN: </label>0-7216-6205-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>biological ecology