1. Ammons, C. H., Worchel, P., & Dallenbach, K. (1953). Facial vision: The perception of obstacles out of doors by blindfolded and blindfolded deafened subjects. American Journal of Psychology 40, 519–553.
2. Anderson, J. R. (1978). Arguments concerning representations for mental imagery. Psychological Review 85, 249–277.
3. Appleyard, D. (1970). Styles and methods of structuring a city. Environment and Behavior 2, 100–117.
4. Appleyard, D. (1976). Planning a Pluralistic City. Cambridge, MA: MIT Press.
5. Armstrong, J. D. (1975). Evaluation of man-machine systems in the mobility of the visually handicapped. In R. M. Pickett & T. J. Triggs (Eds.), Human Factors in Health Care. Lexington, MA: Lexington Books.