000			00414nam a2200157Ia 4500
008			170106s2009||||xx |||||||||||||| ||und||
020			_a9788120328464
082			_a004.6 _bGUP
100			_aGupta, Prakash C.
245		0	_aData communications and computer networks
250			_arep.
260			_aNew Delhi _bPHI Learning _c2009
300			_axxvii, 800p. ; 24 cm.
650			_aComputer science
942			_cBK
999			_c24127 _d24127