Ryall , R. J. <br/><br/>
The digestive system / 
by R. J. Ryall 
 - Harmondsworth :  Penguin Education,  1973 
 - 183 p. :  ill. ;  20 cm. 
 - Penguin Library of Nursing .
<br/><br/><label>ISBN: </label>0140810641 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Digestive system--Nursing texts
<br/><br/><label>National Library of Medicine Call No.: </label>WY156  / .R988d 1973 9HUKM