Greyson Bryan
United States. General Accounting Office
Cynthia M. Horne
Unknown Author
Great Britain. Board of Trade.
Christhophorus Barutu
Rodney de C. Grey
United States. Congress. House. Committee on Ways and Means. Subcommittee on Trade.
Australia. Dept. of Customs and Excise.
Stanley D. Metzger
Mauricio Reina
United States. Congress. Senate. Committee on Finance. Subcommittee on International Trade.
United States. President (1969-1974 : Nixon)
United States Tariff Commission.
Nandana Baruah
Aurora Murteira
Patrick J. Conway
魏圣香