Columbia subject headings:
Coastwise shipping--Turkey--Statistics--Periodicals.
Merchant ships--Turkey--Statistics--Periodicals.
Shipping--Turkey--Statistics--Periodicals.
Harvard subject headings:
Coastwise shipping--Turkey--Statistics--Periodicals.
Merchant ships--Turkey--Statistics--Periodicals.
Shipping--Turkey--Statistics--Periodicals.
Princeton subject headings:
Coastwise shipping--Turkey--Statistics--Periodicals.
Merchant ships--Turkey--Statistics--Periodicals.
Shipping--Turkey--Statistics--Periodicals.