TY  - BOOK
AU  - Atkinson, James
TI  - TELEPHONY
U1  - 654.6 
PY  - 1958///
CY  - London
PB  - Pitman
KW  - Telephone -- Gt. Brit
N1  - Contents : V. 1. General Principles And Manual Exchange Systems -- V. 2. Automatic Exchange Systems
ER  -