Clark, Mary E. <br/><br/>
Contemporary biology / 
Mary E. Clark. 
 - 2d ed. 
 - Philadelphia :  W. B. Saunders Co.,  c1979. 
 - 768 p. in various pagings :  ill. ;  28 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0721625983 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology.
<br/><br/><label>Dewey Class. No.: </label>574  / CLC 1979