Cita APA (7a ed.)
(1967). U.S. Exports: Country by commodity groupings. U.S. Government Printing Office.
Cita Chicago Style (17a ed.)
U.S. Exports: Country by Commodity Groupings. Washington: U.S. Government Printing Office, 1967.
Cita MLA (9a ed.)
U.S. Exports: Country by Commodity Groupings. U.S. Government Printing Office, 1967.
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