World Book Inc. <br/><br/>
The circulatory system / 

 - 48 pages :  illustrations 
 - World Book human body works .
<br/><br/>Includes bibliographical reference index 
<br/><br/><label>ISBN: </label>9780716644255 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cardiovascular system--Juvenile literature<br/>Heart--Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>612.1