000 00271nam a2200109Ia 4500
008 211209s1973 xx 000 0 und d
041 _aeng
082 _a530.15 N73 BUL
100 _aGOSWAMI
245 _aMATHEMATICAL PHYSICS
260 _aNEW DELHI
_bCENGAGE LEARNING
_c1973
999 _c83482
_d83482