Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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