Columbia subject headings:
Agriculture--Congo (Brazzaville)
Congo (Brazzaville)--Social conditions.
Congo (Brazzaville)--Social life and customs.
Harvard subject headings:
Congo (Brazzaville)--History.
Congo (Brazzaville)--Politics and government.
Kukwa (African people)--History.
Kukwa (African people)--Politics and government.
Kukwa (African people)--Social life and customs.
Princeton subject headings: