000 004570000a22001330004500
005 20251028083638.0
008 190521s9999 xx 000 0 und d
082 _a621.417
_bFRA
100 _aFraser, W.
_9576
245 0 _aTelecommunications :
_bAn introductory textbook for engineering students/
_cW. Fraser and Sir Archibald J. Gill
250 _a2nd ed.
260 _aLondon :
_bMacdonald and Co. Publishers, Ltd. ,
_c1971
650 _aTelecommunications
_972
999 _c39897
_d39897