Não informado. (1920). Quarterly Publications of the American Statistical Association. American Statistical Association.
Chicago-Zitierstil (17. Ausg.)Não informado. Quarterly Publications of the American Statistical Association. Boston, Mass: American Statistical Association, 1920.
MLA-Zitierstil (8. Ausg.)Não informado. Quarterly Publications of the American Statistical Association. American Statistical Association, 1920.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.