International Labour Office   <br/><br/>
Encyclopedia of occupational health and safety, vol. 11(L-Z)  (Book) 

 - Geneva  International Labour Office  1971 
 - 1621 p.  30 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industries--Safety measures--Encyclopedia Medicine, Industrial--Encyclopedia
<br/><br/><label>Universal Decimal Class. No.: </label>614(03):331ILO  / 12478