00309nam a2200121Ia 4500008004100000041000800041082001400049100002400063245004000087260003900127300001400166365000700180240624s9999    xx            000 0 und d  aeng  a004.6 MAN  aMANSFIELD KENNETH C  aINTRODUCTION TO COMPUTER NETWORKING  c2004aNew DelhibPearson Education  axi, : 596  cRS