000 00318nam a2200121Ia 4500
020 _a035603772X
100 _aFraser W
245 _aTelecommunications: An Introductory Textbook for Engineering Students
250 _a2
260 _c1970
_bTHE ENGLISH LANGUAGE BOOK SOCIETY
_aLondon
300 _axii+803
942 _cBK
999 _c5934
_d5934