Air traffic services :
National Airspace System modernization, commissioning, and replacement report.
APA Citation
United States. Federal Aviation Administration. (1997). Air traffic services: National Airspace System modernization, commissioning, and replacement report. [Washington, D.C.?]: Federal Aviation Administration.
MLA Citation
United States. Federal Aviation Administration. Air Traffic Services: National Airspace System Modernization, Commissioning, And Replacement Report. [Washington, D.C.?]: Federal Aviation Administration, 1997.
Warning: These citations may not always be complete (especially for serials).