Dyfyniad APA

(1998). Harvard business review on leadership. Harvard Business School.

Dyfyniad Arddull Chicago

Harvard Business Review on Leadership. Harvard Business School, 1998.

Dyfyniad MLA

Harvard Business Review on Leadership. Harvard Business School, 1998.

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