TY  - BOOK
AU  - Hilbert,E.E.
ED  - United States.
TI  - Wide area detection system: conceptual design study 
U1  - 004.67 
PY  - 1978///
CY  - Washington, D.C.
PB  - U.S. Government Printing Office
KW  - Wide area networks (Computer networks)
KW  - Internetworking (Telecommunication)
ER  -