Visual Cliff Studies [handwritten draft]
in Richard D. Walk Papers, of University of Akron. Cummings Center for the History of Psychology; with Richard David Walk, 1920-1999, Series Four: Research Files, 1945-1997. Subseries One: Visual Cliff Research, 1958-1996, Box M4934, Folder 7: Visual cliff data - miscellaneous, 1969-1975 , 35 page(s)
