Columbia subject headings:
Kırıkkale İli (Turkey)--Civilization--Congresses.
Kırıkkale İli (Turkey)--History--Congresses.
Harvard subject headings:
Kırıkkale İli (Turkey)--Civilization--Congresses.
Kırıkkale İli (Turkey)--History--Congresses.
Princeton subject headings:
Kırıkkale İli (Turkey)--Civilization--Congresses.
Kırıkkale İli (Turkey)--History--Congresses.