Encyclopaedia of occupational health and safety 

 - Geneva:  ILO  1971 
 - 2v. 1621p. :ill. ;30cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>l heal and safety
<br/><br/><label>Dewey Class. No.: </label>REF 614.852 ENC