Columbia subject headings:
Eritreans--Egypt.
Eritreans--Sudan.
Ethiopians--Egypt.
Ethiopians--Sudan.
Refugees--Egypt.
Refugees--Sudan.
Harvard subject headings:
Eritreans--Egypt.
Eritreans--Sudan.
Ethiopians--Egypt.
Ethiopians--Sudan.
Refugees--Egypt.
Refugees--Sudan
Princeton subject headings:
Eritreans--Egypt.
Eritreans--Sudan.
Ethiopians--Egypt.
Ethiopians--Sudan.
Refugees--Egypt.
Refugees--Sudan.