(1990). The economic effects of significant U.S. import restraints, phase II: Agricultural products and natural resources. Washington,D.C: United States International Trade Commission.
Chicago-tyylinen lähdeviittausThe Economic Effects of Significant U.S. Import Restraints, Phase II: Agricultural Products and Natural Resources. Washington,D.C: United States International Trade Commission, 1990.
MLA-viiteThe Economic Effects of Significant U.S. Import Restraints, Phase II: Agricultural Products and Natural Resources. Washington,D.C: United States International Trade Commission, 1990.
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