Columbia subject headings:
Harvard subject headings:
Engineers--Switzerland--Biography.
Ethiopia--History--1889-1974.
Ilg, Alfred, 1854-1916
Menelik II, Emperor of Ethiopia, 1844-1913
Swiss--Ethiopia--Biography.
Princeton subject headings:
Engineers--Switzerland--Biography.
Ethiopia--History--1889-1974.
Ilg, Alfred, 1854-1916.
Menelik II, Emperor of Ethiopia, 1844-1913.
Swiss--Ethiopia--Biography.