APA (7th ed.) Zitazioa
Yancey, P. (1977). Where is God when it hurts. Zondervan.
Chicago Style (17th ed.) Zitazioa
Yancey, Philip. Where Is God When It Hurts. Grand Rapids: Zondervan, 1977.
MLA (9th ed.) Zitazioa
Yancey, Philip. Where Is God When It Hurts. Zondervan, 1977.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.