Dyfyniad APA
Hurley, P. J. (2003). A concise introduction to logic (8th.). Wadsworth.
Dyfyniad Arddull Chicago
Hurley, Patrick J. A Concise Introduction to Logic. 8th. Belmont: Wadsworth, 2003.
Dyfyniad MLA
Hurley, Patrick J. A Concise Introduction to Logic. 8th. Wadsworth, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.