(2010). Die Barpiano-Schule: Michael Gundlach. Artist ahead Musikverl. [u.a.].
Cita Chicago (17th ed.)Die Barpiano-Schule: Michael Gundlach. Walldorf: Artist ahead Musikverl. [u.a.], 2010.
Cita MLA (8th ed.)Die Barpiano-Schule: Michael Gundlach. Artist ahead Musikverl. [u.a.], 2010.
Atenció: Aquestes cites poden no estar 100% correctes.