1. Issues in Congressional Tariff Debates;Allen,1954
2. Modern Tariff History;Ashley,1926
3. Tariff Policy and Comparative Advantage in the Iron and Steel Industry 1870–1929;Baack;Explorations in Economic History,1973
4. Tariff Policy and Income Distribution: The Case of the United States 1830–1860;Baack;Explorations in Economic History,1973
5. Determinants of the Commodity Structure of U.S. Trade;Baldwin;American Economic Review,1971