Newbold, Paul. Statistics for business and economics / Paul Newbold, William L. Carlson, Betty M. Thorne. - 8th ed. - England Pearson Education Limited 2013. - 792 p. ISBN: 0273767060 Subjects--Topical Terms: Commerce--Statistical methods. LC Class. No.: HF1017 / .N49 2013 c. 1