APA (7th ed.) Zitazioa

(2006). Prayer: Does it make any difference? / Philip Yancey.

Chicago Style (17th ed.) Zitazioa

Prayer: Does It Make Any Difference? / Philip Yancey. 2006.

MLA (9th ed.) Zitazioa

Prayer: Does It Make Any Difference? / Philip Yancey. 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.