APA (7th ed.) Zitazioa
Hughes,Selwyn. (1991). Understanding the presence of God. CWR.
Chicago Style (17th ed.) Zitazioa
Hughes,Selwyn. Understanding the Presence of God. Surrey: CWR, 1991.
MLA (9th ed.) Zitazioa
Hughes,Selwyn. Understanding the Presence of God. CWR, 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.