Não informado. (1962). Quality. European Organization for Quality Control.
Chicago-referens (17:e uppl.)Não informado. Quality. Rotterdam, Holanda: European Organization for Quality Control, 1962.
MLA-referens (8:e uppl.)Não informado. Quality. European Organization for Quality Control, 1962.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.