Changes made by 89/44/EEC: Commission Decision of 12 December 1988 relating to a proceeding under Article 85 of the EEC Treaty (IV/27.393 and IV/27.394, Publishers Association - Net Book Agreements) (Only the English text is authentic)
EU Decision 1989/44
No changes made by 89/44/EEC: Commission Decision of 12 December 1988 relating to a proceeding under Article 85 of the EEC Treaty (IV/27.393 and IV/27.394, Publishers Association - Net Book Agreements) (Only the English text is authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.