Summary of trade and tariff information :
gypsum board and other building boards : TSUS items 475.70, 245.80, and 245.90.

APA Citation

Jensen, L., United States International Trade Commission. (1983). Summary of trade and tariff information: gypsum board and other building boards : TSUS items 475.70, 245.80, and 245.90. Washington, D.C.: U.S. International Trade Commission.

MLA Citation

Jensen, Leonard, and United States International Trade Commission. Summary of Trade And Tariff Information: Gypsum Board And Other Building Boards : TSUS Items 475.70, 245.80, And 245.90. Washington, D.C.: U.S. International Trade Commission, 1983.