O'Brien, Richard C. <br/><br/>
Dental radiography :  an introduction for dental hygienists and assistants / 
Richard C. O'Brien 
 - 4th ed. 
 - Philadelphia, Pa. :  Saunders,  1982 
 - 296 p. :  ill. 
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0721668879 
<br/><br/><label>Subjects--Topical Terms: </label><br/>TEETH--RADIOGRAPHY
<br/><br/><label>LC Class. No.: </label>RK309  / O274D 1982