APA (7th ed.) Citation

Lewis, C. I., & Langford, C. H. (1959). Symbolic logic (2a. ed.). Dover.

Chicago Style (17th ed.) Citation

Lewis, Clarence Irving, and Cooper Harold Langford. Symbolic Logic. 2a. ed. Nueva York: Dover, 1959.

MLA (9th ed.) Citation

Lewis, Clarence Irving, and Cooper Harold Langford. Symbolic Logic. 2a. ed. Dover, 1959.