Cita APA (7th ed.)
Schindler, R. (2010). Ways of proof theory. Ontos Verlag.
Cita Chicago (17th ed.)
Schindler, Ralf. Ways of Proof Theory. Frankfurt ; New Brunswick: Ontos Verlag, 2010.
Cita MLA (9th ed.)
Schindler, Ralf. Ways of Proof Theory. Ontos Verlag, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.