Columbia subject headings:
Authors, German--20th century--Biography.
Bachmann, Ingeborg, 1926-1973--Travel.
Harvard subject headings:
Authors, Austrian--20th century--Biography
Bachmann, Ingeborg, 1926-1973
Bachmann, Ingeborg, 1926-1973--Travel.
Opel, Adolf, 1935---Travel.
Princeton subject headings:
Bachmann, Ingeborg, 1926-1973--Travel.
Opel, Adolf, 1935---Travel.