APA aipamena

Freund & Williams. (1969). Modern business statistics. Prentice-Hall.

Chicago Style aipamena

Freund and Williams. Modern Business Statistics. New Jersey: Prentice-Hall, 1969.

MLA aipamena

Freund and Williams. Modern Business Statistics. Prentice-Hall, 1969.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.