00437nam a2200133 a 450000500170000000800410001704100080005808200100006610000250007624500630010126400420016430000120020665000850021820260717091803.0260717s2001    ii            000 0 eng d  aeng04a004.61 aForouzan Behrouz, A.10aData Communications and Networking /cForouzan Behrouz, A. 1aNew Delhi :bTata McGraw Hill,c2001.  axxv,908 4aData transmission systems:Computer networks.:Sistemas de transmisión de datos.