Cita APA (7th ed.)
Hammerbacher, H. W. (1931). Skiführer dür Zürs, Lech, Warth..
Cita Chicago (17th ed.)
Hammerbacher, Hans Wilhelm. Skiführer Dür Zürs, Lech, Warth.. München, 1931.
Cita MLA (9th ed.)
Hammerbacher, Hans Wilhelm. Skiführer Dür Zürs, Lech, Warth.. 1931.
Atenció: Aquestes cites poden no estar 100% correctes.