Dyfyniad APA

Conway, D. A., & Munson, R. (1990). The elements of reasoning. Wadsworth.

Dyfyniad Arddull Chicago

Conway, David A., and Ronald Munson. The Elements of Reasoning. California: Wadsworth, 1990.

Dyfyniad MLA

Conway, David A., and Ronald Munson. The Elements of Reasoning. Wadsworth, 1990.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.