Croxton, Frederick E.
Applied general statistics
Prentice-Hall, 1960
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Fisher, Ronald A.
Statistics methods for research workers
Oliver and Boyd, 1950
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Huntsberger, David V.
Elements of statistical inference
Allyn and Bacon, 1970
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Johnson, Palmer O.
Introduction to statistical methods
Prentice-Hall, 1953
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Johnson, Palmer O.
Modern statistics methods : descriptive and inductive
Rand McNally, 1959
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