Columbia subject headings:
Ethiopia--History--1889-1974--Congresses.
Italo-Ethiopian War, 1895-1896--Congresses.
Harvard subject headings:
Alula, Ras, 1827-1897--Congresses.
Ethiopia--History--1490-1889--Congresses.
Ethiopia--History--1889-1974--Congresses.
Italo-Ethiopian War, 1895-1896--Congresses.
Princeton subject headings: