1. Scientific and practical aspects of colour. Proceedings of the International Colour Meeting, Lucerne, 1-4 June 1965. editor. Göttingen: Musterschmidt-Verlag, 1966.
2. Already in 1962, Professor Manfred Richter (1905-1990), Berlin, had suggested the establishment of an international federation on colour measurement in a letter to Professor W. David Wright, London. In: The International Colour Association (AIC), AIC Newsletter, 1996;11:15. The prehistory of the AIC, however, goes as far back as 1957, the year the French Centre d'Information de la Couleur (CIC) began to organize annual journées internationales de la couleur; see Tonnquist G. The Early History of the Association Internationale de la Couleur (AIC), AIC Color 77, Proceedings of the Third Congress of the International Colour Association, Troy, New York, 10-15 July 1977, Billmeyer FW, Jr. and Wyszecki G, editors, Bristol: Adam Hilger, 1978, p. 13-32. See also on the Internet: ?Chronology of AIC Meetings.? Data compiled by José Luis Caivano, Buenos Aires, 2002, http://www.fadu.uba.ar/sicyt/color/aic.htm.
3. Phenomenology in general and as a method of research in the field of colour. In: Scientific and practical apsects of colour. Proceedings of the International Colour Meeting, Lucerne, 1-4 June 1965. editor. Göttingen: Musterschmidt-Verlag, 1966; 64-68.
4. The Language of Architecture. Compendium of the Department of Architecture, Imperial College of Engineering, Haile Sellassie I University, Addis Abeba, 1963. The different parts include: I. Basic Facts Concerning Perception Psychology; II. Formal Aesthetics; III. Architectural Expression; IV. Perception, Expression, Emotion; V. The Architectonic Experience of Room and Space; and, Supplementary I: Appendix and Illustrations.
5. Färgatlas. Stockholm: T. Palmer, 1952.