Columbia subject headings:
Harvard subject headings:
Dams--Political aspects--Egypt.
Dams--Political aspects--Ethiopia.
Egypt--Foreign relations--Ethiopia.
Ethiopia--Foreign relations--Egypt.
Nile River--Regulation.
Nile River--Water rights.
Princeton subject headings:
Barrages--Political aspects--Nile River.
Dams--Political aspects--Egypt.
Dams--Political aspects--Ethiopia.
Egypt--Foreign relations--Ethiopia.
Ethiopia--Foreign relations--Egypt.
Nile River--Regulation.
Nile River--Water rights.