Pickles, J. Toward an economy of electronic representation and the virtual sign: John Pickles. The spaces of postmodernity : readings in human geography.(2002).

Pickles, John. "Toward an Economy of Electronic Representation and the Virtual Sign: John Pickles." The Spaces of Postmodernity : Readings in Human Geography.(2002) .

Pickles, John. "Toward an Economy of Electronic Representation and the Virtual Sign: John Pickles." The Spaces of Postmodernity : Readings in Human Geography.(2002), .