Manual of field biology and ecology /  
Allen H. Benton and William e. Werner. 
 - 5th ed. 
 - New York :  Burgess publishing company,  1972 
 - 400 p:  ill. ;  29 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ecology 
<br/><br/><label>Dewey Class. No.: </label>574.4  / BEM