Cita APA (7th ed.)

Hoffer, C. R. The understanding of music (4th ed.). 780.15.

Cita Chicago (17th ed.)

Hoffer, Charles R. The Understanding of Music. 4th ed. 780.15.

Cita MLA (9th ed.)

Hoffer, Charles R. The Understanding of Music. 4th ed. 780.15.