1. 76/464/EEC: Council Directive of May 1976 on Pollution Caused by Certain Dangerous Substances Discharged into the Aquatic Environment of the Community;Official Journal
2. 76/464/EEC: Council Directive of May 1976 on Pollution Caused by Certain Dangerous Substances Discharged into the Aquatic Environment of the Community;Official Journal
3. No. 849/86, Mo. Obras Públicas y Urbanismo;Decreto,1986