000 00304nam a2200121Ia 4500
008 220201s1995 xx 000 0 eng d
041 _aENG
100 _aGUPTA,B.D
245 0 _aMATHEMATICAL PHYSICS
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1995
300 _a15.49,112
942 _2ddc
999 _c60970
_d60970