TY  - BOOK
ED  - United States.
TI  - Final report: future atc system description atc facilities and interfaces 1980-1990 
U1  -  005.1028 
PY  - 1981///
CY  - Washington, D.C.
PB  - U.S. Government Printing Office
KW  - User interfaces (Computer systems)
KW  - System design
N1  - DOT/ FAA/ RD-81/ 17/MTR-81 WB
ER  -