APA (7th ed.) Zitazioa

Murphy, J. (2007). Believe in yourself (1st Hay House ed.). Hay House.

Chicago Style (17th ed.) Zitazioa

Murphy, Joseph. Believe in Yourself. 1st Hay House ed. Carlsbad, Calif.: Hay House, 2007.

MLA (9th ed.) Zitazioa

Murphy, Joseph. Believe in Yourself. 1st Hay House ed. Hay House, 2007.