Citazione Stile APA (7a Edizione)
(1979). U. S. Exports: Schedule E commodity groupings : schedule E commodity by country : quantity and value : current and cumulative. U.S. Department of Commerce.
Citazione stile Chigago Style (17a edizione)
U. S. Exports: Schedule E Commodity Groupings : Schedule E Commodity by Country : Quantity and Value : Current and Cumulative. Washington: U.S. Department of Commerce, 1979.
Citatione MLA (9a ed.)
U. S. Exports: Schedule E Commodity Groupings : Schedule E Commodity by Country : Quantity and Value : Current and Cumulative. U.S. Department of Commerce, 1979.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.