APA (7th ed.) Zitazioa

Wagner, W. R. (2013). Opera y drama (1a. ed.). Akal.

Chicago Style (17th ed.) Zitazioa

Wagner, Wilhelm Richard. Opera Y Drama. 1a. ed. Madrid: Akal, 2013.

MLA (9th ed.) Zitazioa

Wagner, Wilhelm Richard. Opera Y Drama. 1a. ed. Akal, 2013.