Levin, R. I. (2013). Statistics for management/ Richard I. Levin...[et al] (7th ed.). Pearson.
Cita Chicago (17th ed.)Levin, Richard I. Statistics for Management/ Richard I. Levin...[et Al]. 7th ed. -New Delhi: Pearson, 2013.
Cita MLA (9th ed.)Levin, Richard I. Statistics for Management/ Richard I. Levin...[et Al]. 7th ed. Pearson, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.