Cita APA (7a ed.)
(1980). U.S. Exports: Schedule E commodity by country. U.S. Department of Commerce.
Cita Chicago Style (17a ed.)
U.S. Exports: Schedule E Commodity by Country. Washington: U.S. Department of Commerce, 1980.
Cita MLA (9a ed.)
U.S. Exports: Schedule E Commodity by Country. U.S. Department of Commerce, 1980.
Precaución: Estas citas no son 100% exactas.