Whitfield, Philip <br/><br/>
Why does my heart beat?:  questions about the human body answered by the natural history museum 

 - London:  Marshall Editions Ltd,  1988 
 - 95p.;  29cm. 
 - The Natural History Museum .
<br/><br/><label>ISBN: </label>056501076x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human Physiology
<br/><br/><label>Dewey Class. No.: </label>612  / WHI