Harvard Business Review. (2009). The HBR list: Breakthrough ideas for 2009. Harvard Business.
Chicago Stili AlıntıHarvard Business Review. The HBR List: Breakthrough Ideas for 2009. Boston: Harvard Business, 2009.
MLA AlıntıHarvard Business Review. The HBR List: Breakthrough Ideas for 2009. Harvard Business, 2009.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..