APA (7th ed.) Zitazioa

Abraham, W. J. (1989). The logic of evangelism. Michigan.

Chicago Style (17th ed.) Zitazioa

Abraham, William J. The Logic of Evangelism. WM. B Eerdmans Publishing Company: Michigan, 1989.

MLA (9th ed.) Zitazioa

Abraham, William J. The Logic of Evangelism. Michigan, 1989.