Cotton, Peter B <br/><br/>
Practical Gastrointestinal endoscopy 

 - 3rd ed. 
 - Oxford  Blackwell Science  1990 
 - ix, 289 P.  Illustration 
<br/><br/><label>ISBN: </label>0632027061 
<br/><br/><label>Dewey Class. No.: </label>616.307545  / C57