"États-Unis" . . "Wirtschaftsgeschichte USA." . . "Crise économique (1857) États-Unis." . . . . "Toward a new synthesis on the role of economic issues in the political realignment of the 1850s" . . "Toward a new synthesis on the role of economic issues in the political realignment of the 1850s"@en . "Toward a New Synthesis on the Role of Economic Issues in the Political Realignment of the 1850s"@en . . "Toward a new synthesis on the role of economic issues in the political realignement of the 1850s" . . . . . . . . . . . . . . . . "History"@en . . . . . . . . . . . . . . "Toward a New Synthesis on the Role of Economic Issues in the Political Realignment of the 1850s" . "guerre civile problèmes sociaux Etats-Unis 1850." . . "To 1899" . . "økonomisk historie." . . "National Bureau of Economic Research" . . "Zonder onderwerpscode." . . "1840-1860." . . . . "United States" . .