000 00279nam a2200109 4500
020 _a0824761421
082 _a001.5 COM/SCI.1
100 _aPenland, P R
245 _aCommunication science and technology
_cby Penland, P R
260 _aLondon
_bMarcel Dekker
_c1974
942 _cREF
999 _c378901
_d378901