Cita APA (7th ed.)

Phaidon Press. (1999). Twentieth-century classics. Phaidon Press.

Cita Chicago (17th ed.)

Phaidon Press. Twentieth-century Classics. London: Phaidon Press, 1999.

Cita MLA (9th ed.)

Phaidon Press. Twentieth-century Classics. Phaidon Press, 1999.