Itten, J., Birren, F., & Hagen, E. v. (2003). The Elements of color: A treatise on the color system of Johannes Itten, based on his book The art of color. John Wiley & Sons.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Itten, Johannes, Faber Birren, و 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: John Wiley & Sons, 2003.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Itten, Johannes, et al. The Elements of Color: A Treatise on the Color System of Johannes Itten, Based on His Book The Art of Color. John Wiley & Sons, 2003.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.