Language and operational thought - Presseisen, Barbara Z.; Goldstein, David; Appel, Marilyn H.; Jean Piaget Society (New York Plenum Press, 1978)
'All the papers in this volume were presented at the third and fourth annual symposia of the Society.'
'A publication of the Jean Piaget Society.'
Includes bibliographies and index
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Keywords: Piaget, Jean, b.1896 -- Congresses; Cognition in children -- Congresses; Children -- Languages -- Congresses; Language -- Congresses; Thinking -- Congresses