Cita APA (7th ed.)
Helene Joffe, T. R. Cities at Risk: Living with Perils in the 21st Century. Springer.
Cita Chicago (17th ed.)
Helene Joffe, Tiziana Rossetto. Cities at Risk: Living with Perils in the 21st Century. Dordrecht, Holanda: Springer.
Cita MLA (9th ed.)
Helene Joffe, Tiziana Rossetto. Cities at Risk: Living with Perils in the 21st Century. Springer.
Atenció: Aquestes cites poden no estar 100% correctes.