APA-čujuhus (7. p.)
Hoyningen-Huene, P., & Levine, A. (2004). Formal logic: A philosophical approach. University of Pittsburgh Press.
Chicago-čujuhus (17. p.)
Hoyningen-Huene, Paul, juo Alex Levine. Formal Logic: A Philosophical Approach. Pittsburgh, Pennsylvania: University of Pittsburgh Press, 2004.
MLA-čujuhus (9. p.)
Hoyningen-Huene, Paul, juo Alex Levine. Formal Logic: A Philosophical Approach. University of Pittsburgh Press, 2004.
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