Lipton, M. (1980). Why poor people stay poor: A study of Urban bias in world development. Heritage publishers.
Chicago-tyylinen lähdeviittausLipton, Michael. Why Poor People Stay Poor: A Study of Urban Bias in World Development. New Delhi: Heritage publishers, 1980.
MLA-viiteLipton, Michael. Why Poor People Stay Poor: A Study of Urban Bias in World Development. Heritage publishers, 1980.
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