000 004390000a22001930004500
005 20221004213907.0
040 _cPOF
082 _a 540.92
_b YAS
100 _aKhalid Iqbal Yasir
100 _aMuhammad Arshad Razi
245 _aNobel aat kay aik so teen sal (Kemiya)
260 _bLahore
260 _bUrdu Science Board
260 _c2004
300 _a311
546 _aur
942 _cBK
999 _c660
_d660