Levin, R. I., Rubin, D. S., Stinson, J. P., & Gardner, E. S. (1989). Quantitative approaches to management (7th ed.). New York: McGraw-Hill Book Company.
Παραπομπή Chicago StyleLevin, Richard I., David S. Rubin, Joel P. Stinson, and Everette S. Gardner. Quantitative Approaches to Management. 7th ed. New York: McGraw-Hill Book Company, 1989.
Παραπομπή MLALevin, Richard I., David S. Rubin, Joel P. Stinson, and Everette S. Gardner. Quantitative Approaches to Management. 7th ed. New York: McGraw-Hill Book Company, 1989.
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