Columbia subject headings:
Europe--Description and travel.
Middle East--Description and travel.
Turkey--Description and travel.
Harvard subject headings:
Europe--Description and travel.
Middle East--Description and travel.
Turkey--Description and travel.
Princeton subject headings:
Europe--Description and travel--Early works to 1800.
Middle East--Description and travel--Early works to 1800.
Turkey--Description and travel--Early works to 1800.