Columbia subject headings:
Engin, Aydın.
Taxicab drivers--Germany--Frankfurt am Main.
Turks--Germany--Frankfurt am Main.
Harvard subject headings:
Engin, Aydın.
Taxicab drivers--Germany--Frankfurt am Main.
Turks--Germany--Frankfurt am Main.
Princeton subject headings:
Engin, Aydın.
Taxicab drivers--Germany--Frankfurt am Main.
Turks--Germany--Frankfurt am Main.