Columbia subject headings:
Inscriptions, Phrygian--Congresses.
Phrygia--Congresses.
Phrygian language--Congresses.
Phrygians--Congresses.
Harvard subject headings:
Inscriptions, Phrygian--Congresses.
Phrygia--Congresses.
Phrygian language--Congresses.
Phrygians--Congresses.
Princeton subject headings:
Inscriptions, Phrygian--Congresses.
Phrygians--Congresses.