Cita APA (7th ed.)

Hurley, P. J., & Watson, L. (2018). Concise introduction to logic (13th ed.). Cengage.

Cita Chicago (17th ed.)

Hurley, Patrick J., i Lori Watson. Concise Introduction to Logic. 13th ed. India: Cengage, 2018.

Cita MLA (9th ed.)

Hurley, Patrick J., i Lori Watson. Concise Introduction to Logic. 13th ed. Cengage, 2018.