Lua APA (7ú heag.)

Ewen, D. (1955). Encyclopedia of the opera. A.A. Wyn.

Lua i Stíl Chicago (17ú heag.)

Ewen, David. Encyclopedia of the Opera. New York: A.A. Wyn, 1955.

Lua MLA (9ú heag.)

Ewen, David. Encyclopedia of the Opera. A.A. Wyn, 1955.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.