SpringerLink (Online service), Egenhofer, M. J., & Mark, D. M. (2002). Geographic Information Science: Second International Conference, GIScience 2002, Boulder, CO, USA, September 25-28, 2002. Proceedings (1st ed. 2002.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/3-540-45799-2
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Max J. Egenhofer, και David M. Mark. Geographic Information Science: Second International Conference, GIScience 2002, Boulder, CO, USA, September 25-28, 2002. Proceedings. 1st ed. 2002. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2002. https://doi.org/10.1007/3-540-45799-2.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Geographic Information Science: Second International Conference, GIScience 2002, Boulder, CO, USA, September 25-28, 2002. Proceedings. 1st ed. 2002. Springer Berlin Heidelberg : Imprint: Springer, 2002. https://doi.org/10.1007/3-540-45799-2.
