000 00308nam a2200121Ia 4500
008 220201s1963 xx 000 0 eng d
082 _bHAM
100 _aHamson, C.S.
245 0 _aSolution & problems in Telecommunication
260 _aLondon
_bPitman Publishing house
_c1963
300 _a330
942 _2ddc
999 _c21756
_d21756