Ley, D. Social geography and social action: David Ley. The spaces of postmodernity : readings in human geography.(2002).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLey, David. "Social Geography and Social Action: David Ley." The Spaces of Postmodernity : Readings in Human Geography.(2002) .
एमएलए (8वां संस्करण) प्रशस्ति पत्रLey, David. "Social Geography and Social Action: David Ley." The Spaces of Postmodernity : Readings in Human Geography.(2002), .
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