APA (7th ed.) Zitazioa

Gage, J. T. (1991). The shape of reason: Argumentative writing in college (2a. ed.). MacMillan.

Chicago Style (17th ed.) Zitazioa

Gage, John T. The Shape of Reason: Argumentative Writing in College. 2a. ed. Nueva York: MacMillan, 1991.

MLA (9th ed.) Zitazioa

Gage, John T. The Shape of Reason: Argumentative Writing in College. 2a. ed. MacMillan, 1991.