JEFFREY, R. C. (1967). Formal logic: Its scope and limits. McGraw-Hill.
Chicago Style (17th ed.) CitationJEFFREY, Richard C. Formal Logic: Its Scope and Limits. New York: McGraw-Hill, 1967.
MLA citiranjeJEFFREY, Richard C. Formal Logic: Its Scope and Limits. McGraw-Hill, 1967.
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