000 00298nam a2200121Ia 4500
100 _aWilliamson S. Gill
020 _a0-88175-020-4
942 _cBK
245 _aCombinatorics for computer science
260 _aComputer science press, America
_c1976
082 _a511.6 Wil
300 _ap.xiiii,479
999 _c20185
_d20185