1.
図書 |
George W. Snedecor, William G. Cochran
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2.
図書 |
William G. Cochran
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3.
図書 |
William G. Cochran and Gertrude M. Cox
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4.
図書 |
by George W. Snedecor ; with chapter 17 on sampling by William G. Cochran
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