(2012). Harvard Business Review June-September 2012. HBR.
Lua i Stíl Chicago (17ú heag.)Harvard Business Review June-September 2012. HBR, 2012.
Lua MLA (8ú heag.)Harvard Business Review June-September 2012. HBR, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.