APA-čujuhus (7. p.)
Schindler, R. (2010). Ways of proof theory. Ontos Verlag.
Chicago-čujuhus (17. p.)
Schindler, Ralf. Ways of Proof Theory. Frankfurt ; New Brunswick: Ontos Verlag, 2010.
MLA-čujuhus (9. p.)
Schindler, Ralf. Ways of Proof Theory. Ontos Verlag, 2010.
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