Columbia subject headings:
Harvard subject headings:
Cultural property--Protection--Portugal.
Historic preservation--Portugal.
Historic sites--Conservation and restoration--Portugal.
Portugal--Antiquities--Collection and preservation.
Santarém (Portugal : District)--Antiquities--Collection and preservation.
Princeton subject headings:
Cultural property--Protection--Portugal.
Historic preservation--Portugal.
Historic sites--Conservation and restoration--Portugal.
Portugal--Antiquities--Collection and preservation.
Santarém (Portugal : District)--Antiquities--Collection and preservation.