Columbia subject headings:
Danube River--Description and travel.
Danube River--In literature.
Rivers--Europe.
Turkish literature--Danube River.
Harvard subject headings:
Architecture, Turkish--Danube River Region.
Danube River Region--Antiquities, Turkish.
Danube River Region--Description and travel.
Danube River Region--Poetry.
Princeton subject headings:
Danube River Valley--Antiquities, Turkish.
Danube River--Description and travel.
Danube River--In literature.
Rivers--Europe.