Changes made by 78/193/EEC: Commission Decision of 23 December 1977 relating to a proceeding under Article 85 of the EEC Treaty (IV/29.246 - Penneys) (Only the English text is authentic)
EU Decision 1978/193
No changes made by 78/193/EEC: Commission Decision of 23 December 1977 relating to a proceeding under Article 85 of the EEC Treaty (IV/29.246 - Penneys) (Only the English text is authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.