000 00418 a2200157 4500
020 _a0306404923
082 _a621.38
_bPIE
090 _c5886
_d7962
100 _aPierce, John R.
245 _aIntroduction to communication science and systems
260 _aDelhi
_bKhanna
_c1980
_g1987
300 _axvi, 390p.
_c22cm
650 _aELECTRONICS COMMUNICATIONS ENGINEERING
700 _aPosner, Edward C.
942 _cSR
999 _c34698
_d34698