Peter H. A. Sneath, Robert R. Sokal, 1973
Peter H. A. Sneath, Robert R. Sokal, Numerical Taxonomy. The principles and practice of numerical classification. W.H. Freeman and Co, San Francisco, 1973.
Peter H. A. Sneath, Robert R. Sokal, Numerical Taxonomy. The principles and practice of numerical classification. W.H. Freeman and Co, San Francisco, 1973.
