Changes made by 78/921/EEC: Commission Decision of 20 October 1978 relating to a proceeding under Article 85 of the EEC Treaty (IV/29.133 - WANO Schwarzpulver) (Only the English and German texts are authentic)
EU Decision 1978/921
No changes made by 78/921/EEC: Commission Decision of 20 October 1978 relating to a proceeding under Article 85 of the EEC Treaty (IV/29.133 - WANO Schwarzpulver) (Only the English and German texts are authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.