APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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