Columbia subject headings:
Harvard subject headings:
Archaeology, Medieval--Portugal--Periodicals.
Excavations (Archaeology)--Portugal--Periodicals.
Portugal--Antiquities--Periodicals.
Portugal--Civilization--To 1500--Periodicals.
Princeton subject headings:
Archaeology, Medieval--Portugal--Periodicals.
Excavations (Archaeology)--Portugal--Periodicals.
Portugal--Antiquities--Periodicals.
Portugal--Civilization--To 1500--Periodicals.