Levine, D. M., Timothy C. Krebbiel, & Mark L. Berenson. Business statistics: A first course (2nd edition.). Prentice-Hall,c2000.
Citazione stile Chigago Style (17a edizione)Levine, David M., Timothy C. Krebbiel, e Mark L. Berenson. Business Statistics: A First Course. 2nd edition. Upper saddle River, New Jersey: Prentice-Hall,c2000.
Citatione MLA (9a ed.)Levine, David M., et al. Business Statistics: A First Course. 2nd edition. Prentice-Hall,c2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.