Παραπομπή APA

Michael A. Roberto. (2009). Know what you don't know: How great leaders prevent problems before they happen. Pearson.

Παραπομπή Chicago Style

Michael A. Roberto. Know What You Don't Know: How Great Leaders Prevent Problems Before They Happen. New Delhi: Pearson, 2009.

Παραπομπή MLA

Michael A. Roberto. Know What You Don't Know: How Great Leaders Prevent Problems Before They Happen. Pearson, 2009.