000 00479nam#a2200169ua#4500
001 GOACATREC6145
900 0 0 _a19990821
901 0 0 _aENG
020 0 0 _a0521392632
903 0 0 _a74628
245 0 0 _aUnderstanding Practice : Perspectives on Activity and Context
100 0 0 _aChaoklin, Seth
700 0 0 _aLave, Jean
440 0 0 _aLearning in Doing : Social, Conritive and Computational Perspectives
902 0 0 _a370.1523
260 0 0 _aCambridge
_bCambridge University Press
_c1993
999 _c6152
_d6152