O'Brien, Richard C. <br/><br/>
Dental radiography :an introduction for dental hygienists and assistants 

 - 3d ed. 
 - Philadelphia   Saunders  1977. 
 - viii, 257 p.   ill. ;index 
<br/><br/><label>ISBN: </label>0721668925 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teeth<br/>Radiography, Dental
<br/><br/><label>LC Class. No.: </label>MEDRK309  / O2 7