Business week. (2000). Business week. Mc graw hill.
Dyfyniad Arddull ChicagoBusiness week. Business Week. New York: Mc graw hill, 2000.
Dyfyniad MLABusiness week. Business Week. Mc graw hill, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.