Columbia subject headings:
Black people--Congo (Democratic Republic)--Economic conditions.
Catholic Church--Africa.
Catholic Church--Angola.
Contract labor--Angola.
Indigenous peoples--Angola.
Indigenous peoples--Congo (Democratic Republic)
Slavery--Angola.
Harvard subject headings:
Catholic Church--Africa.
Indigenous peoples--Angola
Indigenous peoples--Congo (Democratic Republic)
Slavery--Angola
Princeton subject headings:
Black people--Congo (Democratic Republic)--Economic conditions.
Catholic Church--Africa.
Catholic Church--Angola.
Contract labor--Angola.
Indigenous peoples--Angola.
Indigenous peoples--Congo (Democratic Republic)
Slavery--Angola.