00471nam a2200157Ia 450000500170000000800460001702000180006303700140008104000200009504100130011508400220012810000170015024500510016726000380021849000570025620250508163811.0008  250505s9999    xx            000 0 eng d  a0-304-70521-7  aReference  aFEDLbengcFEDL  aeng2eng  a150, VYG/RRqFEDL  aVygotsky L S 0aCollected works of L.S. Vygotsky  Vols.  3 - 6  aNew York, USAbPlenum Pressc1997  vV.3 Problems of the theory and history of psychology