Cita APA (7th ed.)

Hurley, P. J. (1985). A concise introduction to logic (2 ed.). Wadsworth.

Cita Chicago (17th ed.)

Hurley, Patrick J. A Concise Introduction to Logic. 2 ed. Belmont: Wadsworth, 1985.

Cita MLA (9th ed.)

Hurley, Patrick J. A Concise Introduction to Logic. 2 ed. Wadsworth, 1985.