Não informado. (1978). EOQC quality. European Organization for Quality Control.
Chicago-referens (17:e uppl.)Não informado. EOQC Quality. Bern: European Organization for Quality Control, 1978.
MLA-referens (8:e uppl.)Não informado. EOQC Quality. European Organization for Quality Control, 1978.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.