1. Working Paper;W. Alonso,1971
2. Working Paper;W. Alonso,1972
3. Alonso, W. 1973. Urban zero population growth. InThe no-growth society, eds. M. Olson and M. Landsberg, pp. 191?206. New York: W. W. Norton.
4. Beale, C. 1969a. Demographic and social considerations for United States rural economic policy.American Journal of Agricultural Economics 51: 410?27.
5. Beale, C. 1969b. The relation of gross out-migration rates to net-migration. Paper delivered at the annual meeting of the Population Association of America, April 10?12, Atlantic City, New Jersey.