(1993). Statistic For Management And Economics Collin J. Watson, Patrick Billingsle, D. James Croft, David V. Huntsberger. Prentice-Hall.
Chicago-viite (17. p.)Statistic For Management And Economics Collin J. Watson, Patrick Billingsle, D. James Croft, David V. Huntsberger. Prentice-Hall, 1993.
MLA-viite (8. p.)Statistic For Management And Economics Collin J. Watson, Patrick Billingsle, D. James Croft, David V. Huntsberger. Prentice-Hall, 1993.
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