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City size distribution and growth
Kopp, Andreas, (2000)
Urban systems and economic development : papers and proceedings of a conference on urban systems research in underdeveloped and advanced economies
Pitts, Forrest R., (1962)
City size distribution and growth : presented at the HWWA-Workshop "Agglomerations, Centres and Periphery" ; this paper is part of the research programme "European integration and spatial development"
City size and place as policy issues
Tolley, George,
A study tour of USA
TOLLEY, GEORGE, (1974)
Some thoughts on higher education
Tolley, George, (1975)