000 00482pam a2200157a 44500
008 160408b1969 xxu||||| |||| 00| 0 eng d
040 _aIIT, Kanpur
082 _a530.12
_bM588a
100 _aMigdal, A.B.
245 1 _aApproximation methods in quantum mechanics
_cA.B. Migdal and V. Krainov
260 _aNew York
_bW.A. Benjamin
_c1969
300 _axi, 146p
650 _aQuantum mechanics
700 _aKrainov, V.
997 _aA2124 W A9136 C
999 _c244478
_d244478