Walter Kiechel. (2010). Lords Of Strategy. Harvard Business.
Lua i Stíl Chicago (17ú heag.)Walter Kiechel. Lords Of Strategy. Boston: Harvard Business, 2010.
Lua MLA (9ú heag.)Walter Kiechel. Lords Of Strategy. Harvard Business, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.