Odum, Eugene P.  1913- <br/><br/>
Fundamentals of ecology / 
Eugene P. Odum 
 - 2nd ed. 
 - Philadelphia :  W. B. Saunders,  1959 
 - 546 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology