APA (7th ed.) Zitazioa

(1974). Composition for three voices, 1934.

Chicago Style (17th ed.) Zitazioa

Composition for Three Voices, 1934. 1974.

MLA (9th ed.) Zitazioa

Composition for Three Voices, 1934. 1974.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.