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.
Lua i Stíl Chicago (17ú heag.)International Colour Association. Congress, Deutscher Verband Farbe, agus Manfred Richter. AIC Color 81, Berlin, 21.-25. September 1981: Proceedings of the 4th Congress of the International Color Association. Berlin: AIC, 1981.
Lua MLA (8ú heag.)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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.