Columbia subject headings:
Bursa (Turkey)--Description and travel--19th century.
Nachov, Nikola, 1859-1940--Travel--Turkey.
Harvard subject headings:
Bursa (Turkey)--Description and travel--19th century.
Nachov, Nikola, 1859-1940--Travel--Turkey.
Princeton subject headings:
Bulgarians--Turkey--Istanbul.
Bursa (Turkey)--Description and travel--19th century.
Istanbul (Turkey)--Description and travel--19th century.
Turkey--Description and travel--19th century.