1. Brockerhoff MP (2000) An urbanizing world. Popul Bull 55:3–44
2. Brown L (1993) The New Shorter Oxford English Dictionary on Historical Principles. Oxford: Clarendon Press
3. Critchfield R (1994) The villagers: changed values, altered lives. Anchor Books, New York
4. Davis K (1972) World urbanization 1950–1970 vol(2): Analysis of trends, relationship, and development. Institute of International Studies, University of California, Berkeley, CA
5. Firebaugh G (1979) Structural determinants of urbanization in Asia and Latin America, 1950–1970. Am Sociol Rev 44:199–215