Dyfyniad APA

Itten, J. (1970). The elements of color: A treatise on the color system of Johannes Itten, based on his book The art of color. Van Nostrand Reinhold.

Dyfyniad Arddull Chicago

Itten, Johannes. 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.

Dyfyniad MLA

Itten, Johannes. The Elements of Color: A Treatise on the Color System of Johannes Itten, Based on His Book The Art of Color. Van Nostrand Reinhold, 1970.

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