TY  - BOOK
T1  - A history of engineering and science in the Bell System /
DA  - 1975-1978.
CY  - [New York] :
AU  - Fagen, M. D.
CN  - TK6023
CN  - TK6023
PB  - The Laboratories,
PP  - [New York] :
PY  - 1975-1978.
ID  - 5815
KW  - Telephone
KW  - Telecommunication
KW  - Electronics
TI  - A history of engineering and science in the Bell System /
ER  -