Cita APA (7th ed.)

Freund, J. E., & Simon, G. A. (1997). Modern elementary statistics (9a. ed.). Prentice Hall.

Cita Chicago (17th ed.)

Freund, John E., i Gary A. Simon. Modern Elementary Statistics. 9a. ed. Upper Saddle River: Prentice Hall, 1997.

Cita MLA (9th ed.)

Freund, John E., i Gary A. Simon. Modern Elementary Statistics. 9a. ed. Prentice Hall, 1997.