Changes to Regulation (EEC) No 232/75 of the Commission of 30 January 1975 on the sale of butter at reduced prices for…
EU Regulation No 232/1975
Made by Regulation (EEC) No 569/77 amending Regulation (EEC) No 232/75 on the sale of butter at reduced prices for…
From legislation.gov.uk's record of changes, the official one: see it there.