APA (7th ed.) Zitazioa
Schuller, R. H. (1976). Positive prayers for power-filled living. Hawthorn Books.
Chicago Style (17th ed.) Zitazioa
Schuller, Robert Harold. Positive Prayers for Power-filled Living. New York: Hawthorn Books, 1976.
MLA (9th ed.) Zitazioa
Schuller, Robert Harold. Positive Prayers for Power-filled Living. Hawthorn Books, 1976.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.