Columbia subject headings:
Refugees--Eritrea.
Refugees--Ethiopia.
Refugees--Sudan--Economic conditions.
Sudan--Economic conditions--1973-1983.
Harvard subject headings:
Refugees--Eritrea.
Refugees--Ethiopia.
Refugees--Sudan--Economic conditions.
Sudan--Economic conditions--1973-
Sudan--Economic conditions--1973-1983.
Sudan--Economic conditions--1983-
Princeton subject headings:
Refugees--Eritrea.
Refugees--Ethiopia.
Refugees--Sudan--Economic conditions.
Sudan--Economic conditions--1983-