Anderberg, M. R. (1973). Cluster Analysis for Applications. New York: Academic Press.
Gower, J. C., and Legendre, P. (1986). “Metric and Euclidean Properties of Dissimilarity Coefficients.” Journal of Classification 3:5–48.
Hand, D. J., Daly, F., Lunn, A. D., McConway, K. J., and Ostrowski, E. (1994). A Handbook of Small Data Sets. London: Chapman & Hall.
Sneath, P. H. A., and Sokal, R. R. (1973). Numerical Taxonomy. San Francisco: W. H. Freeman.