COPI IRVING M. (1979). SYMBOLIC LOGIC (5TH.). PRENTICE -HALL INTERNATIONAL; INC.
Chicago-čujuhus (17. p.)COPI IRVING M. SYMBOLIC LOGIC. 5TH. NEW DELHI: PRENTICE -HALL INTERNATIONAL; INC, 1979.
MLA-čujuhus (9. p.)COPI IRVING M. SYMBOLIC LOGIC. 5TH. PRENTICE -HALL INTERNATIONAL; INC, 1979.
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