Cita APA (7th ed.)

Hartog, H. (1961). European music in the twentieth century. Penguin Books.

Cita Chicago (17th ed.)

Hartog, Howard. European Music in the Twentieth Century. Londres: Penguin Books, 1961.

Cita MLA (9th ed.)

Hartog, Howard. European Music in the Twentieth Century. Penguin Books, 1961.