Cita APA (7th ed.)

Ewen, D. (1968). The world of twentieth-century music. Prentice-Hall.

Cita Chicago (17th ed.)

Ewen, David. The World of Twentieth-century Music. Englewood Cliffs, N.J: Prentice-Hall, 1968.

Cita MLA (9th ed.)

Ewen, David. The World of Twentieth-century Music. Prentice-Hall, 1968.