Schumann, R. A., & Dorffel, A. (2001). Complete works for piano four hands, opp.66, 85, 109, 130. Dover.
Chicago Style (17. basım) AtıfSchumann, Robert Alexander, ve Alfred Dorffel. Complete Works for Piano Four Hands, Opp.66, 85, 109, 130. Mineola, N.Y: Dover, 2001.
MLA (9th ed.) AtıfSchumann, Robert Alexander, ve Alfred Dorffel. Complete Works for Piano Four Hands, Opp.66, 85, 109, 130. Dover, 2001.
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