APA (7th ed.) Zitazioa

Johnson, R. (1996). Elementary statistics (7th ed.). Duxbury.

Chicago Style (17th ed.) Zitazioa

Johnson, Robert. Elementary Statistics. 7th ed. Belmont: Duxbury, 1996.

MLA (9th ed.) Zitazioa

Johnson, Robert. Elementary Statistics. 7th ed. Duxbury, 1996.