00293nam a2200121Ia 4500008004100000020001800041041000800059100002100067245002600088250001000114260003900124300000800163211209s2002    xx            000 0 und d  a81-7808-543-7  aeng  aGRAHAM, RONALD L  aCONCRETE MATHEMATICS   a2 ed.  aNEW DELHIbPEARSON EDUCATIONc2002  a657