Cita APA (7a ed.)

Harper,W.M, & Jones, R. (1991). Statistics (6th ed.). Prentice Hall.

Cita Chicago Style (17a ed.)

Harper,W.M, y Ron Jones. Statistics. 6th ed. London: Prentice Hall, 1991.

Cita MLA (9a ed.)

Harper,W.M, y Ron Jones. Statistics. 6th ed. Prentice Hall, 1991.