TY - BOOK AU - INHELDER,Barbel AU - SINCLAIR,Hermine AU - BOVET,Magali TI - Learning and The Development of Cognition SN - 0710080573 U1 - 153 PY - 1974/// CY - London PB - Routledge and Kegan Paul KW - Learning N1 - Includes bibliographical and Index ER -