000 00323nam a22001457a 4500
020 _a9788181281234
082 _a530.12
_bGRE
100 _aGreiner,W
245 _aQuantum mechanics:an introduction
260 _aNew Delhi
_bSpringer
_c2001
300 _a485p.
650 _aperturbation theory
650 _aspin
942 _cBK
999 _c245463
_d245463