Sommer, Ralph Frederick <br/><br/>
Clinical endodontics: a manual of scientific endodontics  Ralph Frederick Sommer, F. Darl Ostrander and Mary C. Crowley. 

 - Philadelphia  W.B. Saunders  1956 
 - xvii, 514p.: ill. 24cm. 
<br/><br/><label>Dewey Class. No.: </label>616.314  / S62C