00369nam a2200133 a 450000500170000002000180001708200160003510000150005124500580006626000460012430000260017050000190019670000200021520251203111654.0  a9788173710896  a530.15bDAS  aTulsi Dass  aMathematical methods in classical and quantum physics  aHyderabadbUniversities Pressc1998-R2009  aviii,703p.c24cm.bPB  aincludes index  aSharma,Satish K