Não informado. (1977). International Journal of Urban and Regional Research. Edward Arnold.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. International Journal of Urban and Regional Research. London: Edward Arnold, 1977.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. International Journal of Urban and Regional Research. Edward Arnold, 1977.
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