SpringerLink (Online service), Freksa, C., Newcombe, N. S., Gärdenfors, P., & Wölfl, S. (2008). Spatial Cognition VI. Learning, Reasoning, and Talking about Space: International Conference Spatial Cognition 2008, Freiburg, Germany, September 15-19, 2008. Proceedings. Springer Berlin Heidelberg.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Christian Freksa, Nora S. Newcombe, Peter Gärdenfors, και Stefan Wölfl. Spatial Cognition VI. Learning, Reasoning, and Talking About Space: International Conference Spatial Cognition 2008, Freiburg, Germany, September 15-19, 2008. Proceedings. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Spatial Cognition VI. Learning, Reasoning, and Talking About Space: International Conference Spatial Cognition 2008, Freiburg, Germany, September 15-19, 2008. Proceedings. Springer Berlin Heidelberg, 2008.
