Rigby, R. (2011). 28 Business Thinkers Who Changed the World. Kogan Page.
Cita Chicago (17th ed.)Rigby, Rhymer. 28 Business Thinkers Who Changed the World. Kogan Page, 2011.
Cita MLA (9th ed.)Rigby, Rhymer. 28 Business Thinkers Who Changed the World. Kogan Page, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.