Hoyningen-Huene, P., & Levine, A. (2004). Formal logic: A philosophical approach. University of Pittsburgh Press.
Citace podle Chicago (17th ed.)Hoyningen-Huene, Paul, a Alex Levine. Formal Logic: A Philosophical Approach. Pittsburgh, Pennsylvania: University of Pittsburgh Press, 2004.
Citace podle MLA (9th ed.)Hoyningen-Huene, Paul, a Alex Levine. Formal Logic: A Philosophical Approach. University of Pittsburgh Press, 2004.
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