000 00373nam a2200133Ia 4500
008 230501b |||||||| |||| 00| 0 eng d
082 _a511.6
_bN63
100 _aRyser, Herbert John
245 _aCombinatorial methematics
260 _aUSA
_bMathematical Association of America
_c1963
300 _axiv, 154p.
852 _p37605
942 _2ddc
_cC
999 _c112571
_d112571