Columbia subject headings:
Families--Portugal--History.
Portugal--Social conditions.
Portugal--Social life and customs.
Privacy--Portugal--History.
Harvard subject headings:
Families--Portugal--History.
Portugal--Social conditions.
Portugal--Social life and customs.
Privacy--Portugal--History.
Princeton subject headings:
Families--Portugal--History.
Portugal--Social conditions.
Portugal--Social life and customs.
Privacy--Portugal--History.