Theoretical ecology :  principles and applications / 
edited by Robert M. May. 
 - 2nd edition. 
 - Oxford :  Blackwell Scientific Publications,  1981. 
 - ix, 489 pages :  illustrations ;  32 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0632007621 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.