000 00265nam a2200121Ia 4500
008 190216s9999||||xx |||||||||||||| ||und||
100 _aMathchan
245 0 _aPredegree Physics;
260 _bVidyarthimithram
300 _a458p
650 _aPhysics
942 _cBK
999 _c32696
_d32696