Cita APA (7a ed.)

Courtney Hugh. (2001). 20/20 Foresight. Harvard Business.

Cita Chicago Style (17a ed.)

Courtney Hugh. 20/20 Foresight. Boston: Harvard Business, 2001.

Cita MLA (9a ed.)

Courtney Hugh. 20/20 Foresight. Harvard Business, 2001.