Sutter, B. (1958). Andreas Posch: [von] Berthold Sutter.
Cita Chicago (17th ed.)Sutter, Berthold. Andreas Posch: [von] Berthold Sutter. Graz, 1958.
Cita MLA (8th ed.)Sutter, Berthold. Andreas Posch: [von] Berthold Sutter. 1958.
Atenció: Aquestes cites poden no estar 100% correctes.