Clark, F. O., Goss, L., & Grove, R. (1976). Keyboard musician: A piano course for the older or adult beginner. Summy-Birchard.
Cita Chicago (17th ed.)Clark, Frances Omar, Louise Goss, i Roger Grove. Keyboard Musician: A Piano Course for the Older or Adult Beginner. Evanston, Ill: Summy-Birchard, 1976.
Cita MLA (9th ed.)Clark, Frances Omar, et al. Keyboard Musician: A Piano Course for the Older or Adult Beginner. Summy-Birchard, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.