(2002). Creating a winning business formula. Cambridge: Cambridge University Press.
Dyfyniad Arddull ChicagoCreating a Winning Business Formula. Cambridge: Cambridge University Press, 2002.
Dyfyniad MLACreating a Winning Business Formula. Cambridge: Cambridge University Press, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.