Salmon, M. (2002). Introduction to logic and critical thinking (4th ed.). Thomson Learning . Wadsworth.
Παραπομπή Chicago StyleSalmon, Merrilee. Introduction to Logic and Critical Thinking. 4th ed. United States: Thomson Learning . Wadsworth, 2002.
Παραπομπή MLASalmon, Merrilee. Introduction to Logic and Critical Thinking. 4th ed. Thomson Learning . Wadsworth, 2002.
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