Benford, M., Clarke, D., & Macfarlane, M. (2009). Focus on Success: Ausgabe Wirtschaft. Cornelsen.
Chicago Style (17. basım) AtıfBenford, Michael, David Clarke, ve Michael Macfarlane. Focus on Success: Ausgabe Wirtschaft. Berlin: Cornelsen, 2009.
MLA (8th ed.) AtıfBenford, Michael, et al. Focus on Success: Ausgabe Wirtschaft. Cornelsen, 2009.
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