TY  - BOOK
AU  - Joel, Amos E.
AU  - Joel, Amos E, ed.
TI  - Electronic switching: central office systems of the world: switching consultant bell laboratories
SN  - 0-87942-079-0
U1  - 621.381537 
PY  - 1976///
CY  - New York
PB  - IEEE
KW  - Circuits theory
KW  - Electronics-Switching
KW  - Switching theory
N1  - Includes bibliogarphical references and index
ER  -