000 00285 a2200121 4500
080 _a519.2
_bG 487 W
245 1 _aWhat the figures mean
_cby Stephen Gilman
250 _aSecond printing
260 _aNew York
_c1944
100 1 _aGilman, Stephen
_d
300 _a127 p.
901 _a17195
999 _c25514
_d25514