National Bureau of Economic Research, Population Council, & Schultz, T. W. (1974). Economics of the family: Marriage, children, and human capital :a conference report of the National Bureau of Economic Research. Published for the National Bureau of Economic Research by the University of Chicago Press.

National Bureau of Economic Research, Population Council, and Theodore W. Schultz. Economics of the Family: Marriage, Children, and Human Capital :a Conference Report of the National Bureau of Economic Research. Chicago: Published for the National Bureau of Economic Research by the University of Chicago Press, 1974.

National Bureau of Economic Research, et al. Economics of the Family: Marriage, Children, and Human Capital :a Conference Report of the National Bureau of Economic Research. Published for the National Bureau of Economic Research by the University of Chicago Press, 1974.