Changes made by Council Directive of 25 July 1977 on pure-bred breeding animals of the bovine species (77/504/EEC)
EU Directive 1977/504
No changes made by Council Directive of 25 July 1977 on pure-bred breeding animals of the bovine species (77/504/EEC) are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.