Picconi, M. J., Romano, A., & Olson, C. L. (1993). Business Statistics: Elements and Applications. HarperCollins.
Citazione stile Chigago Style (17a edizione)Picconi, Mario J., Albert Romano, e Charles L. Olson. Business Statistics: Elements and Applications. New York: HarperCollins, 1993.
Citatione MLA (9a ed.)Picconi, Mario J., et al. Business Statistics: Elements and Applications. HarperCollins, 1993.