Columbia subject headings:
Jews--Spain--History--Congresses.
Spain--Ethnic relations--Congresses.
Harvard subject headings:
Jews--Spain--History--Congresses.
Spain--Ethnic relations--Congresses.
Princeton subject headings:
Jews--Colombia--History--Congresses.
Jews--New Spain--History--Congresses.
Jews--Spain--History--Congresses.
Spain--Ethnic relations--Congresses.