Curtis, Helena. <br/><br/>
Invitation to biology / 
Helena Curtis ; [illustrator, Shirley Baty]. 
 - 2d ed. 
 - New York :  Worth Publishers,  1977. 
 - xxi, 646 p. :  ill. (some col.) ;  29 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>087901072X 
<br/><br/><label>LCCN: </label>76050677  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology.
<br/><br/><label>LC Class. No.: </label>QH 308 .2 .C87 1977  / .C87 1977 
<br/><br/><label>Dewey Class. No.: </label>574