Lewis, C. I., & Langford, C. H. (1959). Symbolic logic (2a. ed.). Dover.
Chicagoスタイル(17版)引用形式Lewis, Clarence Irving, , Cooper Harold Langford. Symbolic Logic. 2a. ed. Nueva York: Dover, 1959.
MLA(9版)引用形式Lewis, Clarence Irving, , Cooper Harold Langford. Symbolic Logic. 2a. ed. Dover, 1959.
警告: この引用は必ずしも正確ではありません.