APA (7th ed.) Citation

Simpson, C. A. (1980). Synthesized voice approach callouts for air transport operations. National Aeronautics and Space Administration, Scientific and Technical Information Branch.

Chicago Style (17th ed.) Citation

Simpson, Carol A. Synthesized Voice Approach Callouts for Air Transport Operations. Washington, D.C.: National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1980.

MLA (9th ed.) Citation

Simpson, Carol A. Synthesized Voice Approach Callouts for Air Transport Operations. National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1980.