International Organization for Standardization. (1981). Statistical methods (2nd ed.). ISO Central Secretariat.
Citazione stile Chigago Style (17a edizione)International Organization for Standardization. Statistical Methods. 2nd ed. Geneva: ISO Central Secretariat, 1981.
Citatione MLA (9a ed.)International Organization for Standardization. Statistical Methods. 2nd ed. ISO Central Secretariat, 1981.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.