Lua APA (7ú heag.)
Beck, C. R. (2014). What to listen for in opera: An introductory handbook. McFarland & Company, Inc., Publishers.
Lua i Stíl Chicago (17ú heag.)
Beck, Charles R. What to Listen for in Opera: An Introductory Handbook. Jefferson, North Carolina: McFarland & Company, Inc., Publishers, 2014.
Lua MLA (9ú heag.)
Beck, Charles R. What to Listen for in Opera: An Introductory Handbook. McFarland & Company, Inc., Publishers, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.