Trade balance of the United States
61st Congress 2d Session, Senate Document No. 579. Published along with Credit of Nations.
Trade Balance of the United States is found on pages 153-213 of the published document.
National Monetary Commission and Paish, George, ([year]), Trade balance of the United States, [issue title/date], accessed Apr 21, 2014 from FRASER, http:fraser.stlouisfed.org/publication/?pid=669