Curtis, Helena. <br/><br/>
Biology / 
Helena Curtis. 
 - Fourth edition 
 - New York, USA :  Worth Publishers,  1983. 
 - 1159 p. :  il. col. ;  26 cm. 
<br/><br/><br/>Ingles 
<br/><br/><label>ISBN: </label>0879011866  Normal 
<br/><br/><label>Dewey Class. No.: </label>570