Clapp, J. A. (1984). The city: A dictionary of quotable thoughts on cities and urban life (Second edition.). The Center for Urban Policy Research, Rutgers University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रClapp, James A. The City: A Dictionary of Quotable Thoughts on Cities and Urban Life. Second edition. New Brunswick (U.S.A.): The Center for Urban Policy Research, Rutgers University, 1984.
एमएलए (8वां संस्करण) प्रशस्ति पत्रClapp, James A. The City: A Dictionary of Quotable Thoughts on Cities and Urban Life. Second edition. The Center for Urban Policy Research, Rutgers University, 1984.
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