Basic telephone switching systems /
Talley, David.
Basic telephone switching systems / David Talley - India : D. B. Taraporevala, c1980. - 166 p. : ill. ; 22 cm.
Includes index
72102053
Telephone systems.
Telephone, Automatic.
621.3857 / TAB
Basic telephone switching systems / David Talley - India : D. B. Taraporevala, c1980. - 166 p. : ill. ; 22 cm.
Includes index
72102053
Telephone systems.
Telephone, Automatic.
621.3857 / TAB