000 003740000a22001810004500
005 20221004213905.0
040 _cPOF
082 _a 509.2
_b STE
100 _aWilliam Alvier Stevenz
245 _aNamwar Sciencedan
260 _bBook home
260 _bLahore
260 _c2007
300 _a160
546 _aur
942 _cBK
999 _c576
_d576