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024 _a14494
037 _cTextual
040 _aSDCL
_cSDCL
_beng
041 _2eng
_aeng
082 _aD65,4:4, M0
100 _aFreeman Roger L
245 0 _aTelecommunication system engineering
_b Analog and digital network design.
260 _c1980
942 _hD65,4:4, M0
_cTEXL
_2CC
999 _c816903
_d816903