000 00336nam a2200145Ia 4500
020 _a9789690010310
082 _b326
_aSS891.4393
100 _a"Nazar Qayyum"
245 0 _aBachoo ki science
260 _bFerozsons
_aPakistan
_c1991
300 _a40
944 _cBK
999 _c724758
_d724758