(2007). Harvard Business Review May 2007. HBR.
Chicago Style (17. basım) AtıfHarvard Business Review May 2007. HBR, 2007.
MLA (8th ed.) AtıfHarvard Business Review May 2007. HBR, 2007.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..
(2007). Harvard Business Review May 2007. HBR.
Chicago Style (17. basım) AtıfHarvard Business Review May 2007. HBR, 2007.
MLA (8th ed.) AtıfHarvard Business Review May 2007. HBR, 2007.