Citazione Stile APA (7a Edizione)
(1981). U.S. Exports: Schedule E commodity by country. U.S. Department of Commerce.
Citazione stile Chigago Style (17a edizione)
U.S. Exports: Schedule E Commodity by Country. Washington: U.S. Department of Commerce, 1981.
Citatione MLA (9a ed.)
U.S. Exports: Schedule E Commodity by Country. U.S. Department of Commerce, 1981.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.