Tohutoro APA (7th ed.)
Hoyningen-Huene, P., & Levine, A. (2004). Formal logic: A philosophical approach. University of Pittsburgh Press.
Tohutoru Kātū Chicago (17th ed.)
Hoyningen-Huene, Paul, me Alex Levine. Formal Logic: A Philosophical Approach. Pittsburgh, Pennsylvania: University of Pittsburgh Press, 2004.
Tohutoro MLA (9th ed.)
Hoyningen-Huene, Paul, me Alex Levine. Formal Logic: A Philosophical Approach. University of Pittsburgh Press, 2004.
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