Progress in proctology 
editor, J. Hoferichter 
 - Berlin  Springer-Verlag  1968 
 - 247 p. : ill. ; 25 cm. 
<br/><br/><label>LCCN: </label>77-083795 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Proctology