Lewin, Julius. <br/><br/>
The colour bar in the Copper Belt / 
Julius Lewin. 
 - Johannesburg :  S.A. Institute of Race Relations for the Southern African Committee on Industrial Relations,  1941. 
 - 20 p. ;  21 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industrial relations--Rhodesia, Northern.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Rhodesia, Northern--Race question.
<br/><br/><label>Dewey Class. No.: </label>331.113