Technical and economic aspects of measures to reduce water pollution caused by the discharge of certain organophosphorous compounds : azinphos-ethyl (no. 5), azinphos-methyl (no. 6), fenthion (no. 81) / Haskoning Royal Dutch Consulting Engineers and Architects ; Commission des Communautés Européenes. Direction Générale Environment. Securite Nucleaire et Protection Civile. — 1994 Ir a Ficha