1. This effect is discussed in greater detail in myLocation and Land Use (Cambridge: Harvard University Press, 1964).
2. This pattern has been described in the United States as recently as 1962 by Herbert Gans,The Urban Villagers (The Free Press of Glencoe, Illinois, 1962).
3. For an exception, see Lowdon Wingo, Jr.,Transportation and Urban Land (Washington, D. C., Resources for the Future, Inc., 1961).