000 003790000a22001570004500
001 5469
090 _a5469
100 _a19970522 19698 m||y0pory5003 ba
102 _aUS
200 _aTelecommunications and the computer
_fJ. Martin
210 _aNew Jersey
_cPrentice Hall
_d1969
215 _a470 p.
_d20 cm
317 _aOrigem: IM
606 _aTELEMATICA
_zIM
675 _a
700 1 _aMartin
_bJ.