Hoel, P. G. (1971). Introduction to mathematical statistics. (4th ed.). John Wiley & Sons.
Cita Chicago (17th ed.)Hoel, Paul G. Introduction to Mathematical Statistics. 4th ed. New York: John Wiley & Sons, 1971.
Cita MLA (9th ed.)Hoel, Paul G. Introduction to Mathematical Statistics. 4th ed. John Wiley & Sons, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.