Lewis, C. I., & Langford, C. H. (1959). Symbolic logic (2d ed.). Dover Publications.
Chicago Style (17th ed.) CitationLewis, Clarence Irving, and Cooper Harold Langford. Symbolic Logic. 2d ed. [New York]: Dover Publications, 1959.
MLA (8th ed.) CitationLewis, Clarence Irving, and Cooper Harold Langford. Symbolic Logic. 2d ed. Dover Publications, 1959.
Warning: These citations may not always be 100% accurate.