Rothman, H. (2011). 50 Companies that Changed the World. Random House Business Books.
Chicago-referens (17:e uppl.)Rothman, Howard. 50 Companies That Changed the World. London: Random House Business Books, 2011.
MLA-referens (9:e uppl.)Rothman, Howard. 50 Companies That Changed the World. Random House Business Books, 2011.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.