Webster, A. L. (1998). Applied statistics for business and economics: An essentials version (3rd ed.). McGraw-Hill.
Chicago-viite (17. p.)Webster, Allen L. Applied Statistics for Business and Economics: An Essentials Version. 3rd ed. Boston: McGraw-Hill, 1998.
MLA-viite (9. p.)Webster, Allen L. Applied Statistics for Business and Economics: An Essentials Version. 3rd ed. McGraw-Hill, 1998.
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