Brewer, Richard. <br/><br/>
Principles of ecology / 
Richard Brewer. 
 - 1st ed. 
 - Philadelphia :  Saunders,  1979. 
 - vi, 299 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0721619886 
<br/><br/><label>LCCN: </label>77084666  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.
<br/><br/><label>LC Class. No.: </label>QH541  / .B73 
<br/><br/><label>Dewey Class. No.: </label>574  / BRP