Cita APA (7th ed.)

Richards, E. (2008). The blue room. Phaidon Press Limited.

Cita Chicago (17th ed.)

Richards, Eugene. The Blue Room. London, UK; New, York, USA: Phaidon Press Limited, 2008.

Cita MLA (9th ed.)

Richards, Eugene. The Blue Room. Phaidon Press Limited, 2008.