Policies and programs in transition in national and international aviation systems : proceedings ; Fall 1989, October 30 - November 2, 1989, Hyatt Regency Crystal City, Arlington, Virginia
Annual Air Traffic Control Association Conference ; 34
Annual Air Traffic Control Association Conference ; 34 (Arlington, Va.) : 1989.10.30-11.02.
ATCA Fall Conference ; 34
ATCA Fall Conference ; 34 (Arlington, Va.) : 1989.10.30-11.02.
1989
529 S
Konferenzband
Englisch