Cita APA (7th ed.)

Sur, W. R. (1967). This is music book 4. Allyn and Bacon.

Cita Chicago (17th ed.)

Sur, William R. This Is Music Book 4. Boston: Allyn and Bacon, 1967.

Cita MLA (9th ed.)

Sur, William R. This Is Music Book 4. Allyn and Bacon, 1967.