Davis, B. Spatial reasoning in the early years: Principles, assertions, and speculations (1a ed.).
Chicagoスタイル(17版)引用形式Davis, Brent. Spatial Reasoning in the Early Years: Principles, Assertions, and Speculations. 1a ed.
MLA(8版)引用形式Davis, Brent. Spatial Reasoning in the Early Years: Principles, Assertions, and Speculations. 1a ed.
警告: この引用は必ずしも正確ではありません.