Harvard Business School Press. (2006). The essentials of strategy. Harvard Business School.
Dyfyniad Arddull ChicagoHarvard Business School Press. The Essentials of Strategy. Boston: Harvard Business School, 2006.
Dyfyniad MLAHarvard Business School Press. The Essentials of Strategy. Harvard Business School, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.