000 00319nam a2200145Ia 4500
020 _a9789810477189
082 _bT-642
_a530
100 _a"NA"
245 0 _aO LEVEL PHYSICS
260 _b,REDSPOT
_aPAKISTAN
_c2016
300 _a412
944 _cTB
999 _c665698
_d665698