ARDC technical report. 56-8. Symposium on Air Force human engineering, personnel, and training research held under auspices of Division of Anthropology and Psychology. National Academy of Sciences. National Research Council, at request of headquarters, Air Research and Development Command. Air Force, Nov. 14-16, 1955. Washington. D. C. [with lists of references]: Glen Finch and Frank Cameron, editors. Baltimore, Md.