Anderson David R. (2011). Statistic for Business and economics. Cengage Learning.
Cita Chicago (17th ed.)Anderson David R. Statistic for Business and Economics. New delhi: Cengage Learning, 2011.
Cita MLA (9th ed.)Anderson David R. Statistic for Business and Economics. Cengage Learning, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.