Cita APA (7a ed.)

Spangler, M. M., & Conway, P. (1993). Logic: An Aristotelian approach (Rev. ed.). University Press of America.

Cita Chicago Style (17a ed.)

Spangler, Mary Michael, y Pierre Conway. Logic: An Aristotelian Approach. Rev. ed. Lanham [etc.]: University Press of America, 1993.

Cita MLA (9a ed.)

Spangler, Mary Michael, y Pierre Conway. Logic: An Aristotelian Approach. Rev. ed. University Press of America, 1993.