Columbia subject headings:
Harvard subject headings:
Iirebolu (Turkey)--History, Naval.
Merchant marine--Turkey--Tirebolu--History.
Navigation--Turkey--Tirebolu--History.
Sailors--Turkey--Tirebolu--History.
Shipping--Turkey--Tirebolu--History.
Turkey--History, Naval.
Princeton subject headings:
Merchant marine--Turkey--Tirebolu--History.
Navigation--Turkey--Tirebolu--History.
Sailors--Turkey--Tirebolu--History.
Shipping--Turkey--Tirebolu--History.
Turkey--History, Naval.