Duncan, W. The elements of logic: In four books. ... By William Duncan, .. (The ninth edition.).
Chicago Style (17th ed.) CitationDuncan, William. The Elements of Logic: In Four Books. ... By William Duncan, .. The ninth edition.
MLA (9th ed.) CitationDuncan, William. The Elements of Logic: In Four Books. ... By William Duncan, .. The ninth edition.
Warning: These citations may not always be 100% accurate.