Walle, B. v. d., Burghardt, P., Nieuwenhuis, K., J. van Dijk, W., & Koloriet, L. (2007). Proceedings Of Iscram 2007: The fourth international conference on information systems for crisis management, May 13 - 16, 2007, Delft, the Netherlands. VUBPress.
Chicago-referens (17:e uppl.)Walle, Bartel van de, Paul Burghardt, Kees Nieuwenhuis, Walter J. van Dijk, och Leefdaal Koloriet. Proceedings Of Iscram 2007: The Fourth International Conference on Information Systems for Crisis Management, May 13 - 16, 2007, Delft, the Netherlands. Brussels, Belgium: VUBPress, 2007.
MLA-referens (9:e uppl.)Walle, Bartel van de, et al. Proceedings Of Iscram 2007: The Fourth International Conference on Information Systems for Crisis Management, May 13 - 16, 2007, Delft, the Netherlands. VUBPress, 2007.