APA (7th ed.) Citation

Hoel, P. G. (1971). Introduction to mathematical statistics. (4th ed.). John Wiley & Sons.

Chicago Style (17th ed.) Citation

Hoel, Paul G. Introduction to Mathematical Statistics. 4th ed. New York: John Wiley & Sons, 1971.

MLA (9th ed.) Citation

Hoel, Paul G. Introduction to Mathematical Statistics. 4th ed. John Wiley & Sons, 1971.