00331nam a2200145Ia 4500008004100000041000800041082001400049100001300063245003800076250001200114260002200126300000800148365001600156700001300172230612s9999    xx            000 0 und d  aeng  a519.2 LIU  aLiu C.L.  aElements Of Discrete Mathematics.  a2nd ed.  c1985bMcGraw Hill  a433  cRs.b221.70  aLiu C.L.