Ingram, J. A. (1990). Statistics for business and economics. Harcourt Brace Jovanovich.
Chicago Style (17. basım) AtıfIngram, John A. Statistics for Business and Economics. Orlando, Fl.: Harcourt Brace Jovanovich, 1990.
MLA (9th ed.) AtıfIngram, John A. Statistics for Business and Economics. Harcourt Brace Jovanovich, 1990.
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