Cita APA (7a ed.)

Downs, S. (2012). The graphic communication handbook. Routledge.

Cita Chicago Style (17a ed.)

Downs, Simon. The Graphic Communication Handbook. Abingdon, Oxon [England] ; New York, NY: Routledge, 2012.

Cita MLA (9a ed.)

Downs, Simon. The Graphic Communication Handbook. Routledge, 2012.