APA (7th ed.) Zitazioa

Capell, R. (1948). Opera (2a. ed.). Ernest Benn Limited.

Chicago Style (17th ed.) Zitazioa

Capell, Richard. Opera. 2a. ed. Londres: Ernest Benn Limited, 1948.

MLA (9th ed.) Zitazioa

Capell, Richard. Opera. 2a. ed. Ernest Benn Limited, 1948.