In the matter of Puerto Rico regulations on the import, distribution and sale of U.H.T. milk from Quebec 3 June 1993 - World Trade and Arbitration Materials View In the matter of Puerto Rico regulations on the import, distribution and sale of U.H.T. milk from Quebec 3 June 1993 by - World Trade and Arbitration Materials In the matter of Puerto Rico regulations on the import, distribution and sale of U.H.T. milk from Quebec 3 June 1993 5 4 World Trade and Arbitration Materials