000 00262nam a22001097a 4500
082 _a515.35
_bSIM.F
100 _aSimmonds, James G
_aMann, James E.
245 _aFirst look at perturbation theory
250 _a2
260 _aNew York
_bDover
_c1998
942 _cBK
999 _c211148
_d211148