Columbia subject headings:
Erzurum (Turkey)--Description and travel.
Erzurum (Turkey)--History.
Erzurum (Turkey)--Social life and customs.
Harvard subject headings:
Erzurum (Turkey)--Description and travel.
Erzurum (Turkey)--History.
Erzurum (Turkey)--Social life and customs.
Princeton subject headings:
Erzurum (Turkey)--Description and travel.
Erzurum (Turkey)--History.
Erzurum (Turkey)--Social life and customs.