Ullmann, J. E., & Sarwate, M. (1987). Theory and problems of quantitative methods in management/2e (2nd ed.). McGraw-Hill Outline.
Παραπομπή Chicago StyleUllmann, John E., και M.Dilip Sarwate. Theory and Problems of Quantitative Methods in Management/2e. 2nd ed. New York: McGraw-Hill Outline, 1987.
Παραπομπή MLAUllmann, John E., και M.Dilip Sarwate. Theory and Problems of Quantitative Methods in Management/2e. 2nd ed. McGraw-Hill Outline, 1987.
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