APA aipamena

American Hereford Association. The American Hereford journal. Hayes Walker.

Chicago Style aipamena

American Hereford Association. The American Hereford Journal. Kansas City, Mo.: Hayes Walker.

MLA aipamena

American Hereford Association. The American Hereford Journal. Hayes Walker.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.