- Libro electrónicoRace and Schooling in the South, 1880-1950Robert A. Margo
- Libro electrónicoWomen's Work?Joel Perlmann
- Libro electrónicoWages and Labor Markets in the United States, 1820-1860Robert A. Margo
- Libro electrónicoSeries: National Bureau of Economic Research Series on Long-Term Factors in Economic DevelopmentRobert A. Margo