Curtis, Helena. <br/><br/>
Invitation to biology / 
Helena Curtis, N. Sue Barnes ; illustrato r, Shirley Baty. 
 - 4th ed. 
 - New York, N.Y. :  Worth Publishers,  c1985. 
 - xxi, 730 p. :  ill. (some col.) ;  29 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0879012552 
<br/><br/><label>LCCN: </label>84-051925 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology.
<br/><br/><label>Dewey Class. No.: </label>570