000 00369pam a2200133a 44500
082 _a510.5
_bAm35m
100 _aLoud, W. S.
245 1 _aPERIODIC SOLUTIONS OF x + cx + g(x) = ef(t)
260 _aProvidence
_bAmerican Mathematical Society
_c1959
300 _a58
440 _aAmerican Mathematical Society Memoirs, No. 31
_v
964 _gCIRC
997 _a72845 C
999 _c424785
_d424785