Dyfyniad APA

Harvard Business Review. (1999). Harvard business review. Harvard Business School.

Dyfyniad Arddull Chicago

Harvard Business Review. Harvard Business Review. Boston: Harvard Business School, 1999.

Dyfyniad MLA

Harvard Business Review. Harvard Business Review. Harvard Business School, 1999.

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