000 00290nam a2200133Ia 4500
100 _aRoy choudhary/D
942 _cBK
654 _aNetworks
245 _aNetworks and systems
260 _bNew Age Interational Ltd.
_c1988
082 _a621.392
_bROY
300 _a926
546 _aENGLISH
999 _c32246
_d32246