000 00270nam a2200109Ia 4500
008 240421s9999 xx 000 0 und d
100 _aChawdary, S.B.J.R.
245 0 _aMastery Of Teaching Skills
260 _aNew Delhi
_bDiscovery
_c2004
300 _a341p.
942 _cBK
999 _c12918
_d12918