Changes made by Commission Directive 77/794/EEC of 4 November 1977 laying down detailed rules for implementing certain provisions of Directive 76/308/EEC on mutual assistance for the recovery of claims resulting from operations forming part of the system of financing the European Agricultural Guidance and Guarantee Fund, and of agricultural levies and customs duties
EU Directive 1977/794
No changes made by Commission Directive 77/794/EEC of 4 November 1977 laying down detailed rules for implementing certain provisions of Directive 76/308/EEC on mutual assistance for the recovery of claims resulting from operations forming part of the system of financing the European Agricultural Guidance and Guarantee Fund, and of agricultural levies and customs duties are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.