(2011). Statistics for managers using microsoft exel 6th ed. / David M Levine dkk. Pearson.
Chicago-viite (17. p.)Statistics for Managers Using Microsoft Exel 6th Ed. / David M Levine Dkk. Pearson, 2011.
MLA-viite (8. p.)Statistics for Managers Using Microsoft Exel 6th Ed. / David M Levine Dkk. Pearson, 2011.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.