000 00282nam a2200121Ia 4500
654 _aELN
100 _aHenson, C.S.
245 _aSolution Of Problems In Telecommunications
260 _bS.I. Pitman & sons
_aLondon
_c1961
082 _bHEN
300 _a258p.
999 _c33704
_d33704
655 _aF-11
546 _aText in English
041 _aeng
300 _c23 cm.