Cita APA (7a ed.)

Freund, J. E., & Perles, B. M. (2007). Modern elementary statistics (Twelfth edition.). Pearson Prentice Hall.

Cita Chicago Style (17a ed.)

Freund, John E., y Benjamin M. Perles. Modern Elementary Statistics. Twelfth edition. Upper Saddle River, N.J: Pearson Prentice Hall, 2007.

Cita MLA (9a ed.)

Freund, John E., y Benjamin M. Perles. Modern Elementary Statistics. Twelfth edition. Pearson Prentice Hall, 2007.