Παραπομπή σε μορφή APA (7η εκδ.)

Hilley, M., & Olson, L. F. (2002). Piano for pleasure: A basic course for adults (4th ed.). Schirmer/Cengage.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hilley, Martha, και Lynn Freeman Olson. Piano for Pleasure: A Basic Course for Adults. 4th ed. Boston, Mass: Schirmer/Cengage, 2002.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hilley, Martha, και Lynn Freeman Olson. Piano for Pleasure: A Basic Course for Adults. 4th ed. Schirmer/Cengage, 2002.