Benson, J. T. M. a. P. G. Statistics for business and economics. Dellen Publishing Company.
Chicago-viite (17. p.)Benson, James T. McClave and P. George. Statistics for Business and Economics. Dellen Publishing Company.
MLA-viite (8. p.)Benson, James T. McClave and P. George. Statistics for Business and Economics. Dellen Publishing Company.
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