Citazione Stile APA (7a Edizione)
(1964). U.S. Exports: Commodity by Country. U.S. Government Printing Office.
Citazione stile Chigago Style (17a edizione)
U.S. Exports: Commodity by Country. Washington: U.S. Government Printing Office, 1964.
Citatione MLA (9a ed.)
U.S. Exports: Commodity by Country. U.S. Government Printing Office, 1964.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.