000 00290nam a2200121Ia 4500
008 220201s1968 xx 000 0 eng d
082 _bTHA
_a428.34
100 _aThayer, L.
245 0 _aCommunication and communication
260 _bRichard D. Ervin
_c1968
300 _a375
942 _2ddc
999 _c18863
_d18863