National trade estimate report on foreign trade barriers / Foreign trade barriers United States Trade Representative - Washington, DC : Office of the United States Trade Representative, [1996]- - v. ; 28 cm. Published annualy ISBN: Hadiah 0160490243 Subjects--Topical Terms: Exports--United States--PeriodicalsInvestments, American--PeriodicalsCommercial policy--PeriodicalsTariff--PeriodicalsCountertrade--PeriodicalsUnited States--Commercial policy--Periodicals