000			00415nam a2200145Ia 4500
008			190711s9999 xx 000 0 und d
020			_a0070595011
082			_a621.38195404 L581
100			_aLEON -GRACIA ,A
245		0	_aCOMMUNICATION NETWORKS : FUNDAMENTALS CONCEPTS AND KEY ARCHITECTURES
250			_a2
260			_aNEW DELHI _bTata McGraw-Hill _c2004
300			_axxiii+867p.,25X18Cms
942			_cBK _2DDC
999			_c32354 _d32354