Keller, G., Warrack, B., & Bartel, H. (1994). Statistics for management and economics (3rd ed.). Duxbury Press.
Citazione stile Chigago Style (17a edizione)Keller, Gerald, Brian Warrack, e Henry Bartel. Statistics for Management and Economics. 3rd ed. Belmont: Duxbury Press, 1994.
Citatione MLA (9a ed.)Keller, Gerald, et al. Statistics for Management and Economics. 3rd ed. Duxbury Press, 1994.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.