Kendall, M. G. (1955). Rank correlation methods (2nd ed., revised and enlarged.). London: Charles Griffin.
Παραπομπή Chicago StyleKendall, Maurice G. Rank Correlation Methods. 2nd ed., revised and enlarged. London: Charles Griffin, 1955.
Παραπομπή MLAKendall, Maurice G. Rank Correlation Methods. 2nd ed., revised and enlarged. London: Charles Griffin, 1955.
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