000 00399nam a22001457a 4500
020 _a8123911467
050 _aTK 5102.5
_b.G67 2004
100 _aGopal ,R
245 _aProblems and solutions in communication systems
_cR. Gopal
260 _aNew Delhi
_bCBS Publishers & Distributors
300 _a269pgs,ills
490 _aCBS Problems and solutions series
650 _aEngineering
942 _cLL
999 _c3513
_d3513