Newbold, P., Carlson, W. L., & Thorne, B. (2003). Statistics for business and economics (5th ed.). Prentice Hall.
Dyfyniad Arddull ChicagoNewbold, Paul, William L. Carlson, and Betty Thorne. Statistics for Business and Economics. 5th ed. Upper Saddle River, N.J.: Prentice Hall, 2003.
Dyfyniad MLANewbold, Paul, et al. Statistics for Business and Economics. 5th ed. Prentice Hall, 2003.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.