000 003090000a22001210004500
008 150720t1983 xxu||||| |||| 00| 0 eng d
041 _aeng
080 _a621.395.345
_bM3
942 _cBK
100 _aMcDonald, John C., ed.
245 _aFundamentals of digital switching
260 _aNew York
_bPlenum
_c1983
999 _c119813
_d119813