Columbia subject headings:
Excavations (Archaeology)--Greece--Thessaly--Congresses.
Thessaly (Greece)--Antiquities--Congresses.
Harvard subject headings:
Excavations (Archaeology)--Greece--Thessaly--Congresses.
Thessaly (Greece)--Antiquities--Congresses.
Princeton subject headings:
Excavations (Archaeology)--Greece--Thessaly--Congresses.
Thessaly (Greece)--Antiquities--Congresses.