Cita APA (7a ed.)

Levy, H., & Preidel, E. (1945). Elementary statistics. Nelson and Sons.

Cita Chicago Style (17a ed.)

Levy, Hyman, y E.E Preidel. Elementary Statistics. London [etc.]: Nelson and Sons, 1945.

Cita MLA (9a ed.)

Levy, Hyman, y E.E Preidel. Elementary Statistics. Nelson and Sons, 1945.