1. (1983). Semiology of graphs (trans. W. J. Berg). Madison, WI: University of Wisconsin Press.
2. , and (1983). Graphical methods for data analysis. Belmont, CA: Wadsworth.
3. and (1977). Psychology and language. New York: Harcourt Brace Jovanovich.
4. (1978). Perceptual structure and selection. In and (Eds), Handbook of perception, Vol. IX. New York: Academic Press, pp. 49–84.
5. (1985). The elements of graphing data. Monterey, CA: Wadsworth.