000 002910000a22001210004500
245 _aIntroduction to communication theory
100 _aRoden, Martin S.
260 _aNew York
_bPergamon
_c1972
300 _axiv, 272p. : ill.
080 _a621.391
_bR6
041 _aEN
942 _cBK
_02
999 _c94590
_d94590