Christen, Arden. G., 1932- <br/><br/>
Symposium on environmental protection in the dental operatory 
Arden G. Christen and Norman O. Harris, guest editors 
 - Philadelphia, PA  W. B. Saunders  1978 
 - vi, p.329-535: ill. 
 - The Dental clinics of North America   v. 22, no. 3 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>DENTAL OFFICES--SANITATION<br/>DENTAL OFFICES--SAFETY MEASURES<br/>DENTISTRY--ATLASES<br/>DENTISTRY, OPERATIVE--METHODS<br/>DENTISTS--HEALTH AND HYGIENE
<br/><br/><label>LC Class. No.: </label>RK 24 Den