00418nam a2200157Ia 450000100060000000800410000602000150004704000130006208200180007510000180009324500400011126000690015130000110022054600070023165000220023848848140430s9999    xx            000 0 und d  a0262720108  cPK-LaUMT  a 401.9bVYG-T  aVygotsky, Lev  aThought and languagecVygotsky, Lev  aCambridge,USA:bThe Massachusetts Institute of Technology,c1986  a287 p.  aEN  aPsycholinguistics