CROXTON, F. E. (1974). Practical Business Statistics Frederick E. Croxton, Dudley J. Cowden Dan Ben W. Bolch. Prentice Hall of India.
Chicago-viite (17. p.)CROXTON, Frederick E. Practical Business Statistics Frederick E. Croxton, Dudley J. Cowden Dan Ben W. Bolch. Prentice Hall of India, 1974.
MLA-viite (8. p.)CROXTON, Frederick E. Practical Business Statistics Frederick E. Croxton, Dudley J. Cowden Dan Ben W. Bolch. Prentice Hall of India, 1974.
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