000 00287nam a2200145Ia 4500
100 _aAmand
942 _cRB
654 _anetworks
245 _aValue added networks
260 _bMcGraw - Hill
_c1986
082 _a621.3981
_bAMA
300 _a134
546 _aENGLISH
999 _c29123
_d29123