(2012). Harvard Business Review June-September 2012. HBR.
Čikaški stil citiranja (17. izdanje)Harvard Business Review June-September 2012. HBR, 2012.
MLA način citiranja (8. izdanje)Harvard Business Review June-September 2012. HBR, 2012.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.