Dyfyniad APA

ebrary, Inc, Joffe, H., Rossetto, T., & Adams, J. (2013). Cities at risk: Living with perils in the 21st century. Springer.

Dyfyniad Arddull Chicago

ebrary, Inc, Helene Joffe, Tiziana Rossetto, and John Adams. Cities at Risk: Living with Perils in the 21st Century. Dordrecht ; New York: Springer, 2013.

Dyfyniad MLA

ebrary, Inc, et al. Cities at Risk: Living with Perils in the 21st Century. Springer, 2013.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.