1" checks, 1973 [handwritten data charts]
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 M4931, Folder 4: Visual cliff data - babies (RESTRICTED), 1971-1973 , 7 page(s)
