000 00273nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aRao, V.K.
245 0 _aUnderstanding Teaching And Learning
260 _aNew Delhi
_bCommonwealth
_c2009
300 _a336p.
942 _cBK
999 _c13235
_d13235