Sauvy, J., & Sauvy, S. (1974). The child' s discovery of space, from hopscotch to mazes: An introduction to intuitive topology. Harmondsworth, England: Penguin Education.
Citación estilo ChicagoSauvy, Jean, y Simonne Sauvy. The Child' S Discovery of Space, From Hopscotch to Mazes: An Introduction to Intuitive Topology. Harmondsworth, England: Penguin Education, 1974.
Cita MLASauvy, Jean, y Simonne Sauvy. The Child' S Discovery of Space, From Hopscotch to Mazes: An Introduction to Intuitive Topology. Harmondsworth, England: Penguin Education, 1974.
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