Gaya APA

Swanson, C, P., Copi, I, M. (1954). Symbolic logic . New York: New York: Macmillan; 1954..

Gaya MLA

Swanson, Carl, P.., Copi, Irving, M.. "Symbolic logic". New York: New York: Macmillan; 1954., 1954. Text.