Columbia subject headings:
Harvard subject headings:
Austria--Antiquities, Roman.
Bad Deutsch Altenburg (Austria)--Antiquities, Roman.
Carnuntum (Extinct city)
Petronell (Austria)--Antiquities, Roman.
Romans--Austria--Bad Deutsch Altenburg.
Romans--Austria--Carnuntum (Extinct city)
Romans--Austria--Petronell.
Princeton subject headings:
Austria--Antiquities, Roman.
Bad Deutsch Altenburg (Austria)--Antiquities, Roman.
Carnuntum (Extinct city)
Petronell (Austria)--Antiquities, Roman.
Romans--Austria--Bad Deutsch Altenburg.
Romans--Austria--Carnuntum.
Romans--Austria--Petronell.