Columbia subject headings:
Trabzon (Turkey)--Biography.
Trabzon (Turkey)--Description and travel.
Trabzon (Turkey)--History.
Harvard subject headings:
Trabzon (Turkey)--Biography.
Trabzon (Turkey)--Description and travel.
Trabzon (Turkey)--History.
Princeton subject headings:
Trabzon (Turkey)--Biography.
Trabzon (Turkey)--Description and travel.
Trabzon (Turkey)--History.