000 00504nam a22001697a 4500
008 230621b |||||||| |||| 00| 0 eng d
040 _aNational Science Library
_cNational Science Library
080 _aR 621.39(02)
_bM1
100 _aFreeman, Roger L
_911051
245 _aTelecommunication transmission handbook
250 _a2nd ed.
260 _aNew York:
_bJohn Wiley & Sons,
_c1981
300 _axxvii, 706p.
650 _aTelecommunication
653 _aCommunication
942 _2udc
_cBK
999 _c45862
_d45862