Page, R. (2006). Make winning a habit. New York: McGraw-Hill.
Dyfyniad Arddull ChicagoPage, Rick. Make Winning a Habit. New York: McGraw-Hill, 2006.
Dyfyniad MLAPage, Rick. Make Winning a Habit. New York: McGraw-Hill, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.