Letter from Carolyn W. Sherif to Martin D. Gatter, March 13, 1970
in Muzafer and Carolyn Wood Sherif Papers, of University of Akron. Cummings Center for the History of Psychology (1970); with Carolyn Wood Sherif, 1922-1982, Series 5: Research Studies, 1949-1967, Sub-series 2: Robber's Cave Study, 1953-1954, Box M3552, Folder 7 , 1 page(s)