000 00307nam a2200121Ia 4500
008 150201s2011 xx 000 0 und d
082 _a670.423
_bYAD
100 _aDr. K.S. Yadav
245 _aWorkshop Technology-1
260 _bVayu Education of India
_aNew Delhi
_c2011
300 _a320p.
942 _2ddc
_cBK
999 _c5257
_d5257