(2009). Harvard Business Review 2009. HBR.
Chicago Style (17. basım) AtıfHarvard Business Review 2009. HBR, 2009.
MLA (8th ed.) AtıfHarvard Business Review 2009. HBR, 2009.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..
(2009). Harvard Business Review 2009. HBR.
Chicago Style (17. basım) AtıfHarvard Business Review 2009. HBR, 2009.
MLA (8th ed.) AtıfHarvard Business Review 2009. HBR, 2009.