Cita APA

Hall, P., & Pfeiffer, U. (2000). Urban future 21: A global agenda for twenty-first century cities. London: E & FN Spon.

Chicago Style Citation

Hall, Peter, i Ulrich Pfeiffer. Urban Future 21: A Global Agenda for Twenty-first Century Cities. London: E & FN Spon, 2000.

Cita MLA

Hall, Peter, i Ulrich Pfeiffer. Urban Future 21: A Global Agenda for Twenty-first Century Cities. London: E & FN Spon, 2000.