Cita APA (7th ed.)

Zeegen, L. (2009). What is illustration?: Essential design handbooks. RotoVision SA.

Cita Chicago (17th ed.)

Zeegen, Lawrence. What Is Illustration?: Essential Design Handbooks. UK: RotoVision SA, 2009.

Cita MLA (9th ed.)

Zeegen, Lawrence. What Is Illustration?: Essential Design Handbooks. RotoVision SA, 2009.