Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.