Rigby, R. (2011). 28 Business Thinkers Who Changed the World. Kogan Page.
Čikaški stil citiranja (17. izdanje)Rigby, Rhymer. 28 Business Thinkers Who Changed the World. Kogan Page, 2011.
MLA način citiranja (9. izdanje)Rigby, Rhymer. 28 Business Thinkers Who Changed the World. Kogan Page, 2011.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.