000 00508nam a2200217 454500
001 067338
003 BD-ChCU
008 Eng
020 _ax
040 _aDLC
_cDLC
_dBD-ChCU
082 0 0 _a621.38/HAP
100 1 _aHarbottle, H.R.
_bx
245 1 0 _aThe principles of telecommunications engineering
_bx
250 _ax
260 _aLond.
_bEnglish Univ. Press
_c1962
300 _ax
504 _ax
650 0 _aCommunications
_bCommunications
700 1 _aHanman, B.L.
942 _2ddc
_cBK
999 _c67338
_d67338