Adam, S. (2010). Konrad Kardinal Graf von Preysing: Stephan Adam. Pustet.
Cita Chicago (17th ed.)Adam, Stephan. Konrad Kardinal Graf Von Preysing: Stephan Adam. Regensburg: Pustet, 2010.
Cita MLA (8th ed.)Adam, Stephan. Konrad Kardinal Graf Von Preysing: Stephan Adam. Pustet, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.