00418cam0a2200157i004500001000500000005001700005020001400022035001500036041000800051100002100059245004400080260003800124300004200162490002800204830002800232228120260715153613.0  a070176035  atr986012010 aeng1 aDonovan, John J.10aSystems programming /cJohn J. Donovan.  aNew York :bMcGraw-Hill,c(1972).  aXVII, 488 s. :brys. , tab. ;c25 cm.00aComputer Science Series 0aComputer Science Series