00328nam a22001217a 450000500170000002000220001703500130003903700130005210000200006524500790008526000220016430000200018620180818161632.0  a8131705056c00.00  aB-226765  aDPLbENG  aFoley, James D.  aComputer graphics : bPrinciples and practice /cby James D. Foley et. al.  bPearson Education  a1158p.c20 cms.