Okumura Lydia. (2003). Solfege 2. Berklee College of Music.
Cita Chicago (17th ed.)Okumura Lydia. Solfege 2. Berklee College of Music, 2003.
Cita MLA (9th ed.)Okumura Lydia. Solfege 2. Berklee College of Music, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.