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Sokal, Robert R. , and Peter H. A. Sneath. Principles of Numerical Taxonomy. W. H. Freeman and Co. , San Francisco and London. Pp. xvi + 359, illus. 1963. Price 8. 50. Get access Sokal Robert R. Sneath Peter H. A. Principles of Numerical Taxonomy. W. H. Freeman and Co. , San Francisco and London. Pp. xvi + 359, illus. 1963. Price 8. 50. Chables A. Long Chables A. Long Search for other works by this author on: Oxford Academic Google Scholar Journal of Mammalogy, Volume 46, Issue 1, 20 February 1965, Pages 111–112, https: //doi. org/10. 2307/1377831 Published: 20 February 1965
Long et al. (Mon,) studied this question.