000 00363nam a2200145Ia 4500
040 _cPK-LaCSN
082 _a500
_bNIS
100 _aNisar, Prof Muhammad
245 0 _aGeneral science-8(2019-2020)
260 _c2010
_bPunjab Criiculum Text Book Board
_aLahore
300 _a172
942 _cTB
999 _c857920
_d857897