000 00270nam a22000977a 4500
008 120628b xxu||||| |||| 00| 0 eng d
050 _aTK5102.5
_b.H48 1993
245 _aANALOG AND DIGITAL COMMUNICATIONS
300 _a23
942 _2lcc
_cBK
_hTK5102.5
_k.H48 1993
999 _c64525
_d64525