Encyclopaedia of occupational health and safety. 

 - Geneva :    ILO ,    1971. 
 - v. :    ill. 
<br/><br/>  Contents: v.1: A-K 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Occupational health services
<br/><br/><label>National Library of Medicine Call No.: </label>WA 400   /  En19o 1971