Cita APA (7a ed.)

Gray, D. (1927). Scales and arpeggios: For piano. Boosey and Hawkes.

Cita Chicago Style (17a ed.)

Gray, Donald. Scales and Arpeggios: For Piano. Londres: Boosey and Hawkes, 1927.

Cita MLA (9a ed.)

Gray, Donald. Scales and Arpeggios: For Piano. Boosey and Hawkes, 1927.