Columbia subject headings:
Harvard subject headings:
Excavations (Archaeology)--Austria--Salzburg--Congresses.
Romans--Austria--Salzburg--Congresses.
Salzburg (Austria)--Antiquities, Roman--Congresses.
Princeton subject headings:
Excavations (Archaeology)--Austria--Salzburg--Congresses.
Salzburg (Austria)--Antiquities, Roman--Congresses.
Salzburg (Austria)--Antiquities--Congresses.