Παραπομπή APA
Ullmann, J. E. (1976). Schaum's outline of theory and problems of quantitative methods in management. New York: McGraw-Hill.
Παραπομπή Chicago StyleUllmann, John E. Schaum's Outline of Theory and Problems of Quantitative Methods in Management. New York: McGraw-Hill, 1976.
Παραπομπή MLAUllmann, John E. Schaum's Outline of Theory and Problems of Quantitative Methods in Management. New York: McGraw-Hill, 1976.
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