TY  - BOOK
AU  - Jolley,Ernest Harris
TI  - Introduction to telephony and telegraphy
SN  - 8185614369
U1  - 621.38 22
PY  - 1994///
CY  - London
PB  - Pitman
KW  - Telephone
KW  - Telegraph
N1  - Includes bibliography and index
ER  -