Fryer, P. (2014). Opera in the media age: Essays on art, technology and popular culture. McFarland & Company.
Lua i Stíl Chicago (17ú heag.)Fryer, Paul. Opera in the Media Age: Essays on Art, Technology and Popular Culture. Jefferson, North Carolina: McFarland & Company, 2014.
Lua MLA (9ú heag.)Fryer, Paul. Opera in the Media Age: Essays on Art, Technology and Popular Culture. McFarland & Company, 2014.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.