Columbia subject headings:
Copper industry and trade--Congo (Democratic Republic)--Katanga.
Katanga (Congo)--History.
Katanga (Congo)--Population.
Katanga (Congo)--Rural conditions.
Migrant labor--Congo (Democratic Republic)--Katanga.
Harvard subject headings:
Copper industry and trade--Congo--Katanga.
Katanga (Congo)--Economic conditions.
Katanga (Congo)--Social conditions.
Migrant labor--Congo--Katanga.
Princeton subject headings: