International labour code 

 -  1952 
<br/><br/><label>Standard No.: </label>131,520 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECONOMICS
<br/><br/><label>Dewey Class. No.: </label>X:9q1:N51, J2.1-.2