Lua APA (7ú heag.)

Hurley, P. J. A Concise Introduction to Logic. Wadsworth.

Lua i Stíl Chicago (17ú heag.)

Hurley, Patrick J. A Concise Introduction to Logic. Wadsworth.

Lua MLA (9ú heag.)

Hurley, Patrick J. A Concise Introduction to Logic. Wadsworth.

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