Changes made by 84/78/EEC: Commission Decision of 21 December 1983 instituting in the prefecture of Ioannina, Greece, a pilot action in preparation for the integrated Mediterranean programmes (Only the Greek text is authentic)
EU Decision 1984/78
No changes made by 84/78/EEC: Commission Decision of 21 December 1983 instituting in the prefecture of Ioannina, Greece, a pilot action in preparation for the integrated Mediterranean programmes (Only the Greek text is authentic) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.