Itten, J., Birren, F., & Hagen, E. v. (1970). The elements of color: A treatise on the color system of Johannes Itten, based on his book The art of color. New York: Van Nostrand Reinhold.
Παραπομπή Chicago StyleItten, Johannes, Faber Birren, and Ernst van Hagen. The Elements of Color: A Treatise On the Color System of Johannes Itten, Based On His Book The Art of Color. New York: Van Nostrand Reinhold, 1970.
Παραπομπή MLAItten, Johannes, Faber Birren, and Ernst van Hagen. The Elements of Color: A Treatise On the Color System of Johannes Itten, Based On His Book The Art of Color. New York: Van Nostrand Reinhold, 1970.
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