000 00317nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a512 W6629
100 _aWIITALA,S.A
245 0 _aDISCRETE MATHEMATICS A UNIFIED APPROACH
260 _aNEW YORK
_bMcGraw-Hill
_c1987
300 _a22X15cms.,449P
942 _cBK
_2DDC
999 _c21262
_d21262