LDR 00463nam a2200121zu 4500 008 090205n chi d 100 1 _aYu Guangyuan 245 _aTeacher, Student and the Environment _bThe Problem of the "Three Bodies" in the Study of Education as a Cognitive Phenomenon _cYu Guangyuan 773 0 _tSocial Sciences in China _gVol. 1.3 (1980); p. 195-214" 946 _a 001 IFS32821 999 _c304443 _d304443 952 _70 _c1 _40 _00 _9169109 _yBOOK _10 _d2009-05-14 _aIFS