Não informado. (1978). EOQC quality. European Organization for Quality Control.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. EOQC Quality. Bern: European Organization for Quality Control, 1978.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. EOQC Quality. European Organization for Quality Control, 1978.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.