Cita APA

Copi, I. M. (1973). Symbolic logic (4th ed.). Collier Macmillan.

Chicago Edition Citation

Copi, Irving M. Symbolic Logic. 4th ed. London: Collier Macmillan, 1973.

Cita MLA

Copi, Irving M. Symbolic Logic. 4th ed. Collier Macmillan, 1973.