Urban working class. 

 - Lahore  Government Press           1940 
 - Board of Economic Inquiry (Punjab), Publication. 70 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labour Economics
<br/><br/><label>Dewey Class. No.: </label>X:9-16.236.N3t4, H0/GD