تماشای ویدئو Secretary General urges implementation of ballast water convention از آی-ویدئو

See link below for further details on the International Convention for the Control and Management of Ships' Ballast Water and Sediments (BWM): http://www.imo.org/About/Conventions/ListOfConventions/Pages/International-Convention-for-the-Control-and-Management-of-Ships'-Ballast-Water-and-Sediments-(BWM).aspx