Não informado. (1922). Journal of the American Statistical Association. American Statistical Association.
Chicago-referens (17:e uppl.)Não informado. Journal of the American Statistical Association. New York: American Statistical Association, 1922.
MLA-referens (8:e uppl.)Não informado. Journal of the American Statistical Association. American Statistical Association, 1922.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.