1. American Railroads and the Transformation of the Ante-Bellum Economy;Fishlow,1965
2. The Illinois and Michigan Canal: A Study in Economic History;Putnam,1918
3. Railroads and American Economic Growth: Essays in Econometric History;Fogel,1964
4. Railroads and American Economic Growth: Essays in Econometric History;Fogel,1964
5. Railroads and American Economic Growth: Essays in Econometric History;Fogel,1964