APA (7th ed.) Zitazioa
Loewen, P. V. (2013). Music in early Franciscan thought. Brill.
Chicago Style (17th ed.) Zitazioa
Loewen, Peter Victor. Music in Early Franciscan Thought. Boston: Brill, 2013.
MLA (9th ed.) Zitazioa
Loewen, Peter Victor. Music in Early Franciscan Thought. Brill, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.