000 00334nam a2200133Ia 4500
008 221117b |||||||| |||| 00| 0 eng d
040 _aBGL
_cBGL
082 _a510 ROS:D
100 _aRosen Kenneth H
245 0 _aDiscrete Mathematics and its Application
260 _aNew Delhi
_bMc Graw Hill
_c2020
300 _a993p
942 _cGB
999 _c31117
_d31117