Thoughts on the Rural to Urban Migration Turnaround

Berry, Brian J.L. 1977. Transformation of the nation's urban system: small city growth as a zero-sum game. Policy Note P77-1, Harvard University .

U.S. Bureau of the Census. 1975. Current Population Reports. Mobility of the population of the United States: March 1970 to March 1975. Series P-20 No. 285.