000 00278nam a22001097a 4500
082 _a621.382 NOL'M
100 _aNOL, EDWARD M
_957420
245 _aMODERN COMMUNICATIONS COURSE AN MODULATION SYSTEMS
250 _aVOL-2
260 _aNEWYORK
_bHOWARD W. SAMS
_c1962
942 _cBK
999 _c567705
_d567705