Whately, R. (1836). Elements of logic.: Comprising the substance of the article in the Encyclopædia metropolitana; with additions &c. (6th ed., rev.). London: B. Fellowes.MLA Citation
Whately, Richard. Elements of Logic.: Comprising the Substance of the Article in the Encyclopædia Metropolitana; With Additions &c. 6th ed., rev. London: B. Fellowes, 1836.