Columbia subject headings:
Archaeology--Spain--Mérida--Congresses.
Excavations (Archaeology)--Spain--Mérida--Congresses.
Mérida (Spain)--Antiquities--Congresses.
Harvard subject headings:
Archaeology--Spain--Mérida--Congresses.
Mérida (Spain)--Antiquities--Congresses.
Princeton subject headings: