Methods used in establishing permissible levels in occupational exposure to harmful agents :  report of a WHO Expert Committee with the participation of ILO. 

 - Geneva :  World Health Organization,  1977. 
 - 68 p. 
 - World Health Organization technical report series ;  no. 601 .
 - Technical report series (World Health Organization) ;  no. 601. .
<br/><br/><label>ISBN: </label>9241206012 (paper) 
<br/><br/><label>LCCN: </label>90023171     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hazardous substances--Analysis.<br/>Occupational health.