International Colour Association. Congress & Judd, D. B. (1973). Colour 73: Survey lectures and abstracts of the papers presented at the second Congress of the International Colour Association, University of York, 2-6 July 1973. Hilger.
Cita Chicago Style (17a ed.)International Colour Association. Congress y Deane Brewster Judd. Colour 73: Survey Lectures and Abstracts of the Papers Presented at the Second Congress of the International Colour Association, University of York, 2-6 July 1973. London: Hilger, 1973.
Cita MLA (8a ed.)International Colour Association. Congress y Deane Brewster Judd. Colour 73: Survey Lectures and Abstracts of the Papers Presented at the Second Congress of the International Colour Association, University of York, 2-6 July 1973. Hilger, 1973.