00550nam a2200169Ia 4500008004100000020001800041040001700059082002300076100002400099245010000123250000800223260003800231300001600269650004900285700002200334700002400356190329s9999||||xx |||||||||||||| ||und||  a0-07-049935-7  aNITILcNITIL  221sta004.6bF727D  aForouzan, Behrouz A 0aData communications and networkingcBehrouz A Forouzan, Catherine Coombs and Sophia Chung Fegan  a2nd  aNew DelhibTata Mcgraw-Hillc2003  axxxii,944p.  aData transmission systems; Computer networks  aCoombs, Catherine  aFegan, Sophia Chung