Columbia subject headings:
Balıkesir (Turkey)--Description and travel--Congresses.
Balıkesir (Turkey)--History--Congresses.
Harvard subject headings:
Balıkesir (Turkey)--Description and travel--Congresses.
Balıkesir (Turkey)--History--Congresses.
Princeton subject headings:
Balıkesir (Turkey)--Description and travel--Congresses.
Balıkesir (Turkey)--History--Congresses.