APA (7th ed.) Zitazioa
Hein, R. (1982). The harmony within: The spiritual vision of George MacDonald. Christian College Consortium.
Chicago Style (17th ed.) Zitazioa
Hein, Rolland. The Harmony Within: The Spiritual Vision of George MacDonald. Mass.: Christian College Consortium, 1982.
MLA (9th ed.) Zitazioa
Hein, Rolland. The Harmony Within: The Spiritual Vision of George MacDonald. Christian College Consortium, 1982.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.