References
- Day , W. F. and Beach , B. R. November 1950 . “A Survey of the Research Literature Comparing the Visual and Auditory Presentation o£ Information.” . In U. S. Air Force Technical Report No. 5921 , November , Dayton, Ohio : Hq., Air Material Command, Wright‐Patterson Air Force Base .
- Fitts , P. M. , Chapanis , Alphonse and others . 1951 . Human Engineering for an Effective Air Navigation—Air Traffic Control System , Ohio State University Research Foundation .