000 00230nam a2200097Ia 4500
008 230401s9999 xx 000 0 eng d
100 _aGILL(PS)
245 0 _aENGG. GRAPHYCS
260 _bKATARIA & SONS ( DELHI )
942 _2ddc
_cBTECH
999 _c3336
_d3336