TY  - BOOK
AU  - Jolley,E.H.
TI  - Introduction to telephony and telegraphy
U1  - 621.385 
PY  - 1968///
CY  - London
PB  - Pitman and s
KW  - Telephone
KW  - Telegraph
N1  - Includes index; Library has 2 cops
ER  -