Original Technical Papers and Primary Sources

Anonymous (1944): Thomascolor. Four-Color Process For Motion Pictures. In: International Projectionist, 19,10, Oct., pp. 7–9. View Link

Kistler, L. R. (1945): The Projection of Thomascolor Motion Pictures. In: International Projectionist, 20,7, Jul., pp. 12–14. View Link

Secondary Sources

Anonymous (1948): Rouxcolor Stirs France, U.S. In: International Projectionist, 23,6, Jun., pp. 26–27. View Link

Anonymous (1971): Obituary. Richard Thomas. In: Journal of The Society of Photographic Science and Technology of Japan, Vol. 80, Feb., pp. 134–136. View Quote

Nowotny, Robert A. (1983): The Way of All Flesh Tones. A History of Color Motion Picture Processes, 1895-1929. New York: Garland Pub., pp. 272-273. View Quote

Ryan, Roderick T. (1977): A History of Motion Picture Color Technology. London: Focal Press, pp. 46–47 and p. 49. View Quote