Cita APA (7th ed.)

Hilley, M., & Olson, L. F. (2010). PDM: Piano for the developing musician (6th ed.). Schirmer Cengage Learning.

Cita Chicago (17th ed.)

Hilley, Martha, i Lynn Freeman Olson. PDM: Piano for the Developing Musician. 6th ed. Australia: Schirmer Cengage Learning, 2010.

Cita MLA (9th ed.)

Hilley, Martha, i Lynn Freeman Olson. PDM: Piano for the Developing Musician. 6th ed. Schirmer Cengage Learning, 2010.