Cita APA (7th ed.)

Hoel, P. G. (1971). Probability. John Wiley & Sons.

Cita Chicago (17th ed.)

Hoel, Paul G. Probability. New York: John Wiley & Sons, 1971.

Cita MLA (9th ed.)

Hoel, Paul G. Probability. John Wiley & Sons, 1971.