APA (7th ed.) Zitazioa

Ulvaeus. The Book of Music and Nature. Wesleyan University Press.

Chicago Style (17th ed.) Zitazioa

Ulvaeus. The Book of Music and Nature. Wesleyan University Press.

MLA (9th ed.) Zitazioa

Ulvaeus. The Book of Music and Nature. Wesleyan University Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.