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