U.S. foreign trade;
exports, commodity groupings by world area

APA Citation

United States. Bureau of the Census. Foreign Trade Division., United States. Bureau of the Census. (19711973). U.S. foreign trade. Washington, D.C.: U.S. Dept. of Commerce, Bureau of the Census; [for sale by Supt. of Docs., U.S. Govt. Print. Off.].

MLA Citation

United States. Bureau of the Census. Foreign Trade Division, and United States. Bureau of the Census. U.S. Foreign Trade. Washington, D.C.: U.S. Dept. of Commerce, Bureau of the Census; [for sale by Supt. of Docs., U.S. Govt. Print. Off.], 19711973.