APA (7th ed.) Zitazioa

Thomson, R. S. (1992). Italian for the opera. Godwin Books.

Chicago Style (17th ed.) Zitazioa

Thomson, Robert Stuart. Italian for the Opera. Vancouver, BC: Godwin Books, 1992.

MLA (9th ed.) Zitazioa

Thomson, Robert Stuart. Italian for the Opera. Godwin Books, 1992.