Ballard, Carol. 
The stomach and digestion / 
Carol Ballard. 
 - Detroit :  KidHaven Press,  2005. 
 - 32 p. :  col. ill. ;  28 cm. 
 - Exploring the human body .
Includes bibliographical references (p. 31-32) and index. 
0737730234 (hard cover : alk. paper) 
2004023564 
Gastrointestinal system.
Digestion.
QP145  / .B259 2005 
612.3/2