00301nam a2200121 a 450000500170000002000150001708200140003210000210004624500410006726000320010830000180014070000210015820251203110056.0  a0071127046  a511,bMIC  aMichaels, John G  aApplications of discrete mathematics  aNew YorkbMcGraw-Hillc1992  ax,453p.c22cm  aRosen, Kenneth H