Columbia subject headings:
Ethiopia--Description and travel.
Ethiopia--History--1490-1889.
Ethiopia--Social life and customs.
Portugal--History--John III, 1521-1557.
Prester John (Legendary character)
Harvard subject headings:
Ethiopia--Description and travel.
Ethiopia--History--1490-1889.
Ethiopia--Social life and customs.
Portugal--History--John III, 1521-1577.
Prester John (Legendary character).
Princeton subject headings:
Ethiopia--Description and travel.
Ethiopia--History--1490-1889.
Ethiopia--Social life and customs.
Portugal--History--John III, 1521-1577.
Prester John (Legendary character).