Electronic communications /
Roddy, Dennis. ,
Electronic communications / Dennis Roddy, John Coolen. - 3rd ed. - xii, 788 pages : illustrations ; 24 cm.
0876923961
Telecommunication.
TK5105 / .R62 1984
Electronic communications / Dennis Roddy, John Coolen. - 3rd ed. - xii, 788 pages : illustrations ; 24 cm.
0876923961
Telecommunication.
TK5105 / .R62 1984