Barker, S. F. (1989). The elements of logic (5th ed.). McGraw-Hill.
Chicago Style (17th ed.) CitationBarker, Stephen F. The Elements of Logic. 5th ed. New York: McGraw-Hill, 1989.
MLA (9th ed.) CitationBarker, Stephen F. The Elements of Logic. 5th ed. McGraw-Hill, 1989.
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