Barker, R.G. / 1968 / Ecological Psychology: Concepts and Methods for Studying the Environment of Human Behavior / Stanford University Press Gibson, J.J. / 1966 / The Senses Considered as Perceptual Systems / Houghton Mifflin Gibson, J.J. / 1979 / The Ecological Approach to Visual Perception / Houghton Mifflin Greenman, J. / 1988 / Caring Space, Learning Places: Children's Environments That Work / Exchange Press Inc Harris, C.S. / 1965 / Perceptual adaptation to inverted, reversed, and displaced vision / Psychological Review 72 : 419 ~ 444