TY - BOOK ID - 4854306 TI - Piaget : a practical consideration: a consideration of the general theories and work of Jean Piaget, with an account of a short follow up study of his work on the development of the concept of geometry PY - 1969 SN - 0080068936 PB - Oxford : Pergamon press, DB - UniCat KW - Child psychology KW - Geometry concept KW - Enfants KW - Psychologie KW - Piaget, Jean, KW - Child psychology. KW - Geometry concept. UR - https://www.unicat.be/uniCat?func=search&query=sysid:4854306 AB - ER -