APA (7th ed.) Zitazioa
Piper, J. (2021). The supremacy of God in preaching. Crossway.
Chicago Style (17th ed.) Zitazioa
Piper, John. The Supremacy of God in Preaching. Wheaton, Illinois: Crossway, 2021.
MLA (9th ed.) Zitazioa
Piper, John. The Supremacy of God in Preaching. Crossway, 2021.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.