Report of the director-general 

 - Geneva  International labour office Geneva       1966 
 - 93p  cm. 
<br/><br/><label>Standard No.: </label>15,250 
<br/><br/><label>Source: </label> Reports / Technical Reports 
<br/><br/><label>Dewey Class. No.: </label>X:97.1.N6, K6