000 00345nam a2200145Ia 4500
008 170101s1968 xx 000 0 und d
082 _a512.5 L67I
100 _aLIU, C.L
245 0 _aIntroduction to combinatrial mathematics
260 _bN.Y
_c1968
300 _a393p
650 _aCOMBINATIONS
653 _aCOMBINATIONS
942 _2ddc
_cB
999 _c30755
_d30755