SpringerLink (Online service), Xiao, N., Kwan, M., Goodchild, M. F., & Shekhar, S. (2012). Geographic Information Science: 7th International Conference, GIScience 2012, Columbus, OH, USA, September 18-21, 2012. Proceedings. Springer Berlin Heidelberg : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Ningchuan Xiao, Mei-Po Kwan, Michael F. Goodchild, και Shashi Shekhar. Geographic Information Science: 7th International Conference, GIScience 2012, Columbus, OH, USA, September 18-21, 2012. Proceedings. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2012.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Geographic Information Science: 7th International Conference, GIScience 2012, Columbus, OH, USA, September 18-21, 2012. Proceedings. Springer Berlin Heidelberg : Imprint: Springer, 2012.
