Dyfyniad APA

Copi, I. M. (1986). Introduction to logic: Introduction to logic (7th ed.). Macmillan.

Dyfyniad Arddull Chicago

Copi, Irving M. Introduction to Logic: Introduction to Logic. 7th ed. New York: Macmillan, 1986.

Dyfyniad MLA

Copi, Irving M. Introduction to Logic: Introduction to Logic. 7th ed. Macmillan, 1986.

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