Wilkinson, R. G. (1973). Poverty and progress: An ecological model of economic development. London: Methuen.
Čikaški stil citiranjaWilkinson, Richard G. Poverty and Progress: An Ecological Model of Economic Development. London: Methuen, 1973.
MLA način citiranjaWilkinson, Richard G. Poverty and Progress: An Ecological Model of Economic Development. London: Methuen, 1973.
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