Columbia subject headings:
Aragon (Spain)--Ethnic relations.
Aragon (Spain)--Politics and government.
Jews--Spain--Aragon--History.
Jews--Spain--Aragon--Social conditions.
Harvard subject headings:
Aragon (Spain)--Civilization.
Christians--Spain--Aragon--History.
Jews--Spain--Aragon--History--To 1500.
Princeton subject headings:
Aragon (Spain)--Civilization.
Christians--Spain--Aragon--History.
Jews--Spain--Aragon--History--To 1500.