Koren, K  <br/><br/>
Manual on radiation protection in hospitals and general practice  
/ World Health Organization, Vol. 4 radiation protection in dentistry  
 - Geneva:   World Health Organization,   1977 
 - 52p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Radiation 
<br/><br/><label>Subjects--Index Terms: </label>Radiation equipment   
<br/><br/><label>Universal Decimal Class. No.: </label>616-073:615.25  / L4