Kendall, M. G. (1962). Rank correlation methods (3rd ed.). Charles Griffin & Co. Ltd..
Lua i Stíl Chicago (17ú heag.)Kendall, Maurice G. Rank Correlation Methods. 3rd ed. London: Charles Griffin & Co. Ltd., 1962.
Lua MLA (8ú heag.)Kendall, Maurice G. Rank Correlation Methods. 3rd ed. Charles Griffin & Co. Ltd., 1962.
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