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. New York [[u.a.]: van Nostrand Reinhold Company.
Styl ChicagoItten, Johannes, a 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 [[u.a.]: van Nostrand Reinhold Company, 1970.
Citace podle MLAItten, Johannes, a 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 [[u.a.]: van Nostrand Reinhold Company, 1970.
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