Wilson, J. Q. (1968). The metropolitan enigma: Inquiries into the nature and dimensions of America's "urban crisis". Cambridge, Mass: Harvard University Press.
Παραπομπή Chicago StyleWilson, James Quinn. The Metropolitan Enigma: Inquiries Into the Nature and Dimensions of America's "urban Crisis". Cambridge, Mass: Harvard University Press, 1968.
Παραπομπή MLAWilson, James Quinn. The Metropolitan Enigma: Inquiries Into the Nature and Dimensions of America's "urban Crisis". Cambridge, Mass: Harvard University Press, 1968.
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