Douglas, E. J. (1992). Managerial economics: Analysis and strategy (4th edition.). Prentice Hall International Inc.
Chicago Style (17. basım) AtıfDouglas, Evan J. Managerial Economics: Analysis and Strategy. 4th edition. Englewood Cliffs, New Jersey: Prentice Hall International Inc, 1992.
MLA (9th ed.) AtıfDouglas, Evan J. Managerial Economics: Analysis and Strategy. 4th edition. Prentice Hall International Inc, 1992.
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