000 00286nam a2200097Ia 4500
008 160523s9999 xx 000 0 und d
100 _aLiu, C. L.
245 _aTopics in combinatorial mathematics
260 _aMassachusetts
_bMathematical Association of America
_c1972
300 _aii, 265p.
999 _c29279
_d29279