Columbia subject headings:
Sinop İli (Turkey)--Description and travel--Congresses.
Sinop İli (Turkey)--Economic conditions--Congresses.
Sinop İli (Turkey)--History--Congresses.
Harvard subject headings:
Sinop İli (Turkey)--Description and travel--Congresses.
Sinop İli (Turkey)--Economic conditions--Congresses.
Sinop İli (Turkey)--History--Congresses.
Princeton subject headings:
Sinop İli (Turkey)--Description and travel--Congresses.
Sinop İli (Turkey)--Economic conditions--Congresses.
Sinop İli (Turkey)--History--Congresses.