Outline of the U.S. economy. Office of International Information Programs U.S. Department of State.
Citazione stile Chigago Style (17a edizione)Outline of the U.S. Economy. Office of International Information Programs U.S. Department of State.
Citatione MLA (9a ed.)Outline of the U.S. Economy. Office of International Information Programs U.S. Department of State.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.