Owen, Denis F. <br/><br/>
What is ecology? / 
[by] D. F. Owen 
 - 2nd ed. 
 - Oxford :  Oxford University Press,  1980 
 - 234 p. :  ill. ;  21 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0192191551 
<br/><br/><label>LCCN: </label>80-502685 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology