Telephone voice transmission :
Gayler, Winston D.,
Telephone voice transmission : Standards and measurement / Winston d. gayler - 221 páginas
0139027769
Teléfono--Normas
TK6169 / G39
Telephone voice transmission : Standards and measurement / Winston d. gayler - 221 páginas
0139027769
Teléfono--Normas
TK6169 / G39