Poggiolesi, F. (2011). Gentzen calculi for modal propositional logic. Springer Dordrecht. https://doi.org/10.1007/978-90-481-9670-8
Cita Chicago (17th ed.)Poggiolesi, Francesca. Gentzen Calculi for Modal Propositional Logic. Dordrecht, Netherlands: Springer Dordrecht, 2011. https://doi.org/10.1007/978-90-481-9670-8.
Cita MLA (9th ed.)Poggiolesi, Francesca. Gentzen Calculi for Modal Propositional Logic. Springer Dordrecht, 2011. https://doi.org/10.1007/978-90-481-9670-8.
Atenció: Aquestes cites poden no estar 100% correctes.