000 00269nam a2200097Ia 4500
008 170619s9999 xx 000 0 und d
100 _aGross- Lynne Schafer
245 0 _aTelecommunications An introduction to electronic media
260 _bC B S Pub.:New Delhi
260 _c1997
546 _aENGLISH
999 _c17897
_d17897