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.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रInternational Colour Association. Congress और 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.
एमएलए (8वां संस्करण) प्रशस्ति पत्रInternational Colour Association. Congress और 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.