TY  - GEN
T1  - Growing vulnerability of the public switched networks : implications for national security emergency preparedness : a report
A2  - McDonald, John C., 1936-
LA  - English
PP  - Washington, D.C.
PB  - National Academy Press
YR  - 1989
UL  - https://ebooks.jgu.edu.in/Record/ebsco_acadsubs_ocm58673612
OP  - 119
NO  - Committee chairman: John C. McDonald.
CN  - TK5102.5 .N31 1989eb
SN  - 0309580919
SN  - 9780309580915
KW  - Telecommunication systems.
KW  - Emergency communication systems : United States.
KW  - National security : United States.
KW  - Telecommunication : United States : Switching systems.
KW  - Systèmes de télécommunications.
KW  - Systèmes de communication d'urgence : États-Unis.
KW  - Télécommunications : États-Unis : Systèmes de commutation.
KW  - telecommunication systems.
KW  - COMPUTERS : Information Theory.
KW  - TECHNOLOGY & ENGINEERING : Signals & Signal Processing.
KW  - Emergency communication systems
KW  - National security
KW  - Telecommunication : Switching systems
KW  - Telecommunication systems
KW  - United States
ER  -