000 00250nam a2200109Ia 4500
008 200129s9999 xx 000 0 und d
082 _a372 WAL-1
100 _aWALKER, D.
245 0 _a10 BEST TEACHING PRACTICES
260 _bSAGE
_c2011
942 _cREF
999 _c3223
_d3223