APA (7th ed.) Citation

Bomford, D., & Roy, A. (2000). Colour. National Gallery.

Chicago Style (17th ed.) Citation

Bomford, David, and Ashok Roy. Colour. London: National Gallery, 2000.

MLA (9th ed.) Citation

Bomford, David, and Ashok Roy. Colour. National Gallery, 2000.

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