APA (7th ed.) Zitazioa

Freund, J. E. (1973). Modern elementary statistics (4th.). Prentice-Hall.

Chicago Style (17th ed.) Zitazioa

Freund, John E. Modern Elementary Statistics. 4th. New Jersey: Prentice-Hall, 1973.

MLA (9th ed.) Zitazioa

Freund, John E. Modern Elementary Statistics. 4th. Prentice-Hall, 1973.