00374nam a2200133 a 450000500170000010000210001724500410003826000440007930000200012396400160014399700120015999900170017195200520018820251203091243.0  aHarper, Charlie.  aIntroduction to Mathematical Physics  aNew DelhibPrentice Hall of Indiac1987  axvi, 301p.cPB.  bcdefg_  a41066 W  c35544d35544  02104070aPUbPUd2000-12-24l0o p41066yBK