000 00265nam a2200121Ia 4500
082 _a519 LIU/E
100 _aLiu CL
245 _aElements of Discrete Mathematics
250 _a2
260 _c1987
_bMcGraw-Hill (ISE)
_aNew Delhi
300 _axiv+433
942 _cBK
999 _c11930
_d11930