Cita APA (7th ed.)

Hoel, P. H. (1976). Elementary statistics (1st edition.). John Wiley.

Cita Chicago (17th ed.)

Hoel, Poul H. Elementary Statistics. 1st edition. New York: John Wiley, 1976.

Cita MLA (9th ed.)

Hoel, Poul H. Elementary Statistics. 1st edition. John Wiley, 1976.