000 00302nam a2200121Ia 4500
999 _c31977
_d31977
020 _a9788178086514
100 _aRalph P Grimaldi
245 _aDiscrete and Combinatorial Mathematics
250 _a4th
260 _c2005
_bPearson Education
_aNew Delhi
300 _axix+791+A*34+S-84+I-20
942 _cBB