000 00265nam a2200121Ia 4500
082 _a531.3 WEL
100 _aWELLS, D.A.
245 _aTHEORY AND PROBLEMS OF LAGRANGIAN DYNAMICS
250 _aII
260 _bMC GRAW HILL
_c1967
300 _a353
942 _2ddc
_cB
999 _c38294
_d38294