APA (7th ed.) Zitazioa

Barker, S. F. (1980). The elements of logic (3rd ed.). McGraw-Hill.

Chicago Style (17th ed.) Zitazioa

Barker, Stephen F. The Elements of Logic. 3rd ed. New York: McGraw-Hill, 1980.

MLA (9th ed.) Zitazioa

Barker, Stephen F. The Elements of Logic. 3rd ed. McGraw-Hill, 1980.