Cita APA (7th ed.)

Hurley, P. J. (1988). A concise introduction to logic (3ª ed.). Wadsworth.

Cita Chicago (17th ed.)

Hurley, Patrick J. A Concise Introduction to Logic. 3ª ed. Wadsworth, 1988.

Cita MLA (9th ed.)

Hurley, Patrick J. A Concise Introduction to Logic. 3ª ed. Wadsworth, 1988.