000 00294 a2200121 4500
080 _a51
_bH 774 I
245 1 _aIngenuity in mathematics
_cby R. Honsberger
260 _aNew York
_bRandom House
_c1970
650 _aMathematics
100 1 _aHonsberger, R.
_d
300 _a204 p.
901 _a160731
999 _c65754
_d65754