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Jonas Langer

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Stand Alone

Piaget, evolution, and development
The origins of logic: one to two years
The origins of logic: one to two years
The origins of logic: six to twelve months
Theories of Development
Origins of Logic. Six to Twelve Months (Developmental Psychology Series)
Origins of Logic (Developmental Psychology)
The Origins of Logic. One to Two Years
Theories of Development
Piaget, Evolution, and Development
Piaget, Evolution, and Development
Piaget, Evolution, and Development
Piaget, Evolution, and Development (Jean Piaget Symposia)
Piaget, Evolution, and Development
Piaget, Evolution, and Development

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