Berkowitz Sol. (2017). New Approach to Sight Singing. W W Norton.
Cita Chicago (17th ed.)Berkowitz Sol. New Approach to Sight Singing. W W Norton, 2017.
Cita MLA (9th ed.)Berkowitz Sol. New Approach to Sight Singing. W W Norton, 2017.
Atenció: Aquestes cites poden no estar 100% correctes.