(2003). Managing change and transition. Harvard business school.
Dyfyniad Arddull ChicagoManaging Change and Transition. Boston: Harvard business school, 2003.
Dyfyniad MLAManaging Change and Transition. Harvard business school, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.