McCall, R. J. (1952). Basic logic: The fundamental principles of formal deductive reasoning (2nd ed.). National Book Store.
Παραπομπή σε μορφή Chicago (17η εκδ.)McCall, Raymond Joseph. Basic Logic: The Fundamental Principles of Formal Deductive Reasoning. 2nd ed. Manila: National Book Store, 1952.
Παραπομπή σε μορφή MLA (9th εκδ.)McCall, Raymond Joseph. Basic Logic: The Fundamental Principles of Formal Deductive Reasoning. 2nd ed. National Book Store, 1952.
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