Creighton, J. E. (1908). An Introductory Logic. Macmillan.
Chicago-čujuhus (17. p.)Creighton, James Edwin. An Introductory Logic. London: Macmillan, 1908.
MLA-čujuhus (9. p.)Creighton, James Edwin. An Introductory Logic. Macmillan, 1908.
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