Clark, Mary E <br/><br/>
Contemporary biology / 
Mary E. Clark 
 - 2nd ed. 
 - Philadelphia :  W. B. Saunders,  1979 
 - 768 p. in various pagings . :  ill. ;  28 cm. 
<br/><br/>Includes bibliographies and index 
<br/><br/><label>ISBN: </label>0721625983 
<br/><br/><label>LCCN: </label>77-025553 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology