APA aipamena

Beethoven, L. v. Piano Sonatas No. 9, 10, 12.

Chicago Style aipamena

Beethoven, Ludwig van. Piano Sonatas No. 9, 10, 12.

MLA aipamena

Beethoven, Ludwig van. Piano Sonatas No. 9, 10, 12.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.