SpringerLink (Online service), Freksa, C., Brauer, W., Habel, C., & Wender, K. F. (2003). Spatial Cognition III: Routes and Navigation, Human Memory and Learning, Spatial Representation and Spatial Learning (1st ed. 2003.). Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/3-540-45004-1
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Christian Freksa, Wilfried Brauer, Christopher Habel, και Karl F. Wender. Spatial Cognition III: Routes and Navigation, Human Memory and Learning, Spatial Representation and Spatial Learning. 1st ed. 2003. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2003. https://doi.org/10.1007/3-540-45004-1.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Spatial Cognition III: Routes and Navigation, Human Memory and Learning, Spatial Representation and Spatial Learning. 1st ed. 2003. Springer Berlin Heidelberg : Imprint: Springer, 2003. https://doi.org/10.1007/3-540-45004-1.