Columbia subject headings:
Harvard subject headings:
Congo (Democratic Republic)--Emigration and immigration.
Office of the United Nations High Commissioner for Refugees
Refugee camps--Africa, Central.
Refugees--Africa, Central.
Return migration--Africa, Central.
Princeton subject headings:
Exiles--Africa, Central--Social conditions.
Office of the United Nations High Commissioner for Refugees.
Refugees--Africa, Central--International cooperation.
Refugees--Africa, Central--Social conditions.
Return migration--Africa, Central--History.