00386nam a2200145Ia 4500008004100000020001400041041000800055082001600063100002000079245007800099250000600177260003500183300001300218650000900231210716s1996    xx            000 0 und d  a133669238  aeng  a004.65 BEYW  aBeyda, William.  aData communications: from basics to broadband.bFrom basics to broadband.  a2  aNew DelhibPrentice Hallc1996  axvii,311  aNone