000 00321nam a2200121Ia 4500
008 220201s1999 xx 000 0 eng d
082 _a621.381
_bHAN
100 _aHancock
245 0 _aIntroduction to the principle of communication theory
260 _aNew Delhi
_bTata McGraw Hill
_c1999
300 _a253
942 _2ddc
999 _c27849
_d27849