GOULD, F. J., EPPEN, G. D., & SCHMIDT, C. (1985). Quantitative concepts for management: Decision makingwithout algorithms (3.). Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)GOULD, F. J., Garry D. EPPEN, agus Charles SCHMIDT. Quantitative Concepts for Management: Decision Makingwithout Algorithms. 3. Englewood Cliffs: Prentice-Hall, 1985.
Lua MLA (9ú heag.)GOULD, F. J., et al. Quantitative Concepts for Management: Decision Makingwithout Algorithms. 3. Prentice-Hall, 1985.
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