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