000 00321nam a2200133Ia 4500
008 190829s9999||||xx |||||||||||||| ||und||
020 _a852269242.00
100 _aVatssa, B S
245 0 _aDiscrete Mathematics
250 _a2ND ED.
260 _bWishwa Prakashan
_aNew Delhi
_c1988
650 _aMathematics
942 _cBK
999 _c1832
_d1832