APA (7th ed.) Citation

Itten, J., & Birren, F. (1970). The elements of color: A treatise on the color system of Johannes Itten, based on his book The art of color. John Wiley & Sons.

Chicago Style (17th ed.) Citation

Itten, Johannes, and Faber Birren. The Elements of Color: A Treatise on the Color System of Johannes Itten, Based on His Book The Art of Color. New York: John Wiley & Sons, 1970.

MLA (9th ed.) Citation

Itten, Johannes, and Faber Birren. The Elements of Color: A Treatise on the Color System of Johannes Itten, Based on His Book The Art of Color. John Wiley & Sons, 1970.