An introduction, by R. Sennett.
The nature of the city, by M. Weber.
The metropolis and mental life, by G. Simmel.
The soul of the city, by O. Spengler.
The city; suggestions for the investigation of human behavior in the urban environment. Human migration and the marginal man. By R. Park.
Urbanism as a way of life. Rural-urban differences. Human ecology. By L. Wirth.
The folk society, by R. Redfield.
The cultural role of cities, by R. Redfield and M. Singer.