Rothman, H. (2011). 50 Companies that Changed the World. Random House Business Books.
Lua i Stíl Chicago (17ú heag.)Rothman, Howard. 50 Companies That Changed the World. London: Random House Business Books, 2011.
Lua MLA (9ú heag.)Rothman, Howard. 50 Companies That Changed the World. Random House Business Books, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.