APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.