Hall, P. G., & Pfeiffer, U. (2000). Urban future 21: A global agenda for twenty-first century cities. London ; New York: E & FN Spon.
Παραπομπή Chicago StyleHall, Peter Geoffrey, and Ulrich Pfeiffer. Urban Future 21: A Global Agenda for Twenty-first Century Cities. London ; New York: E & FN Spon, 2000.
Παραπομπή MLAHall, Peter Geoffrey, and Ulrich Pfeiffer. Urban Future 21: A Global Agenda for Twenty-first Century Cities. London ; New York: E & FN Spon, 2000.
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