Davis, B. Spatial reasoning in the early years: Principles, assertions, and speculations (1a ed.).
Citación estilo ChicagoDavis, Brent. Spatial Reasoning in the Early Years: Principles, Assertions, and Speculations. 1a ed.
Cita MLADavis, Brent. Spatial Reasoning in the Early Years: Principles, Assertions, and Speculations. 1a ed.
Warning: These citations may not always be 100% accurate.