Kruskal, W. H., & Tanur, J. M. (1978). International encyclopedia of statistics. New York : Free Pr.
Lua i Stíl Chicago (17ú heag.)Kruskal, William H., agus Judith M. Tanur. International Encyclopedia of Statistics. New York : Free Pr, 1978.
Lua MLA (9ú heag.)Kruskal, William H., agus Judith M. Tanur. International Encyclopedia of Statistics. New York : Free Pr, 1978.
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