National Research Council (USA) Board on Earth Sciences and Resources. (2006). Learning to think spatially. National Academies Press.
Chicago-Zitierstil (17. Ausg.)National Research Council (USA) Board on Earth Sciences and Resources. Learning to Think Spatially. Washington, D.C: National Academies Press, 2006.
MLA-Zitierstil (9. Ausg.)National Research Council (USA) Board on Earth Sciences and Resources. Learning to Think Spatially. National Academies Press, 2006.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.