00342nam a2200133Ia 450000500170000000800410001704100080005808200160006610000200008224500350010226000390013730000090017665000230018520250729165748.0250729s2003    xx            000 0 und d  aeng  a001.51 DOUI  aDouglas E Comer  aInternet Working With TCP / IP  aNew DelhibPearson Educationc2003  a750p  aComputer Education