000 00307 a2200085 4500
100 1 _aHancock, John C..
_eAutor
245 0 _aAn Introduction to the Principles of Communication Theory /
_cHancock John C..
710 2 _aMcGraw-Hill Book Company.
_eWydawca
_4pbl
260 _aNew York :
_bMcGraw-Hill,
_c1961.
300 _aX, 253 s.;
_c25 cm.
999 _c6091
_d6091