Columbia subject headings:
Jews--Portugal--Trás-os-Montes e Alto Douro--History.
Harvard subject headings:
Jews--Portugal--Trás-os-Montes e Alto Douro--History.
Princeton subject headings:
Jews--Portugal--Trás-os-Montes e Alto Douro--History.
Trás-os-Montes e Alto Douro (Portugal)--Ethnic relations.