000 00332nam a2200133Ia 4500
008 190711s9999 xx 000 0 und d
020 _a1850581819
082 _a621.381 954 04 L415
100 _aLAWTON,L.S
245 0 _aINTERGRATED DIGITAL NETWORKS
260 _aENGLAND
_bSIGMA PRESS
_c1993
300 _a24X16
942 _cBK
_2DDC
999 _c24540
_d24540