Não informado. (1997). Stanford business. Stanford University, Graduate School of Business.
Čikaški stil citiranja (17. izdanje)Não informado. Stanford Business. Stanford, Conn: Stanford University, Graduate School of Business, 1997.
MLA način citiranja (8. izdanje)Não informado. Stanford Business. Stanford University, Graduate School of Business, 1997.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.