Odum,Eugene P. <br/><br/>
Fundamentals of ecology. 

 - 3rd  ed. 
 - Toronto :  Saunders,  1971. 
 - 574  p. :  ill ;    cm. 
<br/><br/>index. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ecology.