Cita APA (7th ed.)
Levin, R. I., & Rubin, D. S. (1997). Statistics for management (7th ed.). Prentice Hall.
Cita Chicago (17th ed.)
Levin, Richard I., i David S. Rubin. Statistics for Management. 7th ed. Upper Saddle River, N.J.: Prentice Hall, 1997.
Cita MLA (9th ed.)
Levin, Richard I., i David S. Rubin. Statistics for Management. 7th ed. Prentice Hall, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.