Halvorson, H. H. (2018). 9 things successful people do differently. Boston, Mass: Harvard Business Review Press.
Dyfyniad Arddull ChicagoHalvorson, Heidi Halvorson. 9 Things Successful People Do Differently. Boston, Mass: Harvard Business Review Press, 2018.
Dyfyniad MLAHalvorson, Heidi Halvorson. 9 Things Successful People Do Differently. Boston, Mass: Harvard Business Review Press, 2018.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.