APA (7th ed.) Citation

Opara, E., & Cantwell, J. (2014). Color works: Best practices for graphic designers : an essential guide to understanding and applying color design principles. Rockport Publishers.

Chicago Style (17th ed.) Citation

Opara, Eddie, and John Cantwell. Color Works: Best Practices for Graphic Designers : An Essential Guide to Understanding and Applying Color Design Principles. Beverly, MA: Rockport Publishers, 2014.

MLA (8th ed.) Citation

Opara, Eddie, and John Cantwell. Color Works: Best Practices for Graphic Designers : An Essential Guide to Understanding and Applying Color Design Principles. Rockport Publishers, 2014.