000			00622nam a2200205Ia 4500
008			161214s9999 xx 000 0 und d
020			_a8120309251 _c(pbk)
082			_223 _a621.3891 _bBLA
100			_aBlack, Uyless D.
245		0	_aData Communications and Distributed Networks
250			_a3rd ed.
260			_aNew Delhi: _bPrentice Hall of India, _c2001
300			_a426 p.; _bIllus. Index.: _c23 cm.
650			_aCircuit Switching
650			_aCommunication Network
650			_aCommunication System Operations
650			_aData Communications Network
650			_aDigital Transmission
942			_2ddc _cBK
999			_c6505 _d6505