TY  - BOOK
AU  - Joel,Amos E.
TI  - Electronic switching: digital central office systems of the world 
T2  - IEEE Press selected reprint series
PY  - 1982///
CY  - New York, N.Y.
PB  - IEEE Press
KW  - Telephone switching systems, Electronic
KW  - Addresses, essays, lectures
N1  - Includes bibliographies
ER  -