000 00393nam a2200169Ia 4500
999 _c24191
_d24191
008 210628s9999 xx 000 0 und d
040 _cPK-GjGUL
082 _a540
_bUSM-F
100 _aUsman Ellahi Sheikh
245 0 _aFirst Twenty Minutes
_bChemistry
_cby Usman Ellahi Sheikh
260 _apak (Gujranwala)
_bHaroon Publishers
300 _a75 p.
_bpbk
_cM
546 _aEng.
650 _aChemistry ii
942 _2ddc
_cBK