※一部利用できない機能があります
1.
図書 |
edited by Irving E. Sigel, Frank H. Hooper ; with foreword by Bärbel Inhelder
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2.
図書 |
edited by Bärbel Inhelder, Denys de Caprona, Angela Cornu-Wells
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3.
図書 |
par Bärbel Inhelder, Hermine Sinclair, Magali Bovet ; Préf. de Jean Piaget
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