000 002890000a22001210004500
245 _aSolution of problems in electronics & telecommunication
100 _aHenson, C.S.
250 _a3d ed.
260 _aLondon
_bPitman
_c1968
080 _a621.38(076)
_bH4
041 _aEN
942 _cBK
999 _c92861
_d92861