International Colour Association. Congress, Deutscher Verband Farbe, & Richter, M. (1981). AIC Color 81, Berlin, 21.-25. September 1981: Proceedings of the 4th Congress of the International Color Association. AIC.
Citace podle Chicago (17th ed.)International Colour Association. Congress, Deutscher Verband Farbe, a Manfred Richter. AIC Color 81, Berlin, 21.-25. September 1981: Proceedings of the 4th Congress of the International Color Association. Berlin: AIC, 1981.
Citace podle MLA (8th ed.)International Colour Association. Congress, et al. AIC Color 81, Berlin, 21.-25. September 1981: Proceedings of the 4th Congress of the International Color Association. AIC, 1981.
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