APA (7th ed.) Zitazioa
Beck, C. R. (2014). What to listen for in opera: An introductory handbook. McFarland & Company, Inc., Publishers.
Chicago Style (17th ed.) Zitazioa
Beck, Charles R. What to Listen for in Opera: An Introductory Handbook. Jefferson, North Carolina: McFarland & Company, Inc., Publishers, 2014.
MLA (9th ed.) Zitazioa
Beck, Charles R. What to Listen for in Opera: An Introductory Handbook. McFarland & Company, Inc., Publishers, 2014.
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