Ritvo, Max <br/><br/>
Gastrointestinal X-Ray diagnosis 
by Max Ritvo and I. A. Shauffer 
 - Philadelphia  Lea & Febiger  1952 
 - 838 p. :  ill. ;  26 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Gastrointestinal diseases<br/>Radiology