APA (7th ed.) Zitazioa

BARKER, S. F. (1965). The Elements of logic. McGraw-Hill.

Chicago Style (17th ed.) Zitazioa

BARKER, Stephen F. The Elements of Logic. New York: McGraw-Hill, 1965.

MLA (9th ed.) Zitazioa

BARKER, Stephen F. The Elements of Logic. McGraw-Hill, 1965.