00337nam a2200109Ia 4500008004100000082001900041100002000060245008100080250000900161260003200170650002500202220204s9999    xx            000 0 und d  a681.3.068bGEA  aGear, C William 0aComputer organization and programming with emphasis on the personal computer  aEd.4  aNew YorkbMcGraw Hillc1985  aComputer programming