Annex V C.9 Degradation: Chemical Oxygen Demand, Commission Directive 84/449/EEC, (OJ L 251,19.9.1984, p. 1).
Annex V C.9 Degradation: Chemical Oxygen Demand, A Bizottság 84/449/EGK irányelve (HL L 251., 1984.9.9., 1. o).