Columbia subject headings:
Catholic Church--Missions--Congo (Democratic Republic)
Congregation of the Immaculate Heart of Mary--Missions--Congo (Democratic Republic)
Literacy--Congo (Democratic Republic)
Mai-Ndombe, Lake, Region (Congo)--Social conditions.
Pygmies--Education--Congo (Democratic Republic)
Harvard subject headings:
Catholic Church--Missions--Congo (Democratic Republic)
Catholic Church--Missions--Congo (Democratic Republic)--Mai-Ndombe, Lake.
Congregation of the Immaculate Heart of Mary--Missions--Congo (Democratic Republic)
Congregation of the Immaculate Heart of Mary--Missions--Congo (Democratic Republic)--Mai-Ndombe, Lake.
Evangelistic work--Congo (Democratic Republic)--Mai-Ndombe, Lake.
Literacy--Congo (Democratic Republic)
Literacy--Congo (Democratic Republic)--Mai-Ndombe, Lake.
Mai-Ndombe, Lake (Congo)--Social conditions.
Mai-Ndombe, Lake, Region (Congo)--Social conditions.
Pygmies--Education--Congo (Democratic Republic)
Pygmies--Education--Congo (Democratic Republic)--Mai-Ndombe, Lake.
Princeton subject headings: