Levin, R. I., & Kirkpatrick, C. A. (1971). Quantitative approaches to management (2d ed.). McGraw-Hill.
Citace podle Chicago (17th ed.)Levin, Richard I., a Charles Atkinson Kirkpatrick. Quantitative Approaches to Management. 2d ed. New York: McGraw-Hill, 1971.
Citace podle MLA (9th ed.)Levin, Richard I., a Charles Atkinson Kirkpatrick. Quantitative Approaches to Management. 2d ed. McGraw-Hill, 1971.
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