APA (7th ed.) Zitazioa

Freedman, D. (1978). Statistics. W.W. Norton.

Chicago Style (17th ed.) Zitazioa

Freedman, David. Statistics. New York: W.W. Norton, 1978.

MLA (9th ed.) Zitazioa

Freedman, David. Statistics. W.W. Norton, 1978.