doi:10.7916/d8-q7dc-7s61Memorandum from Gunnar Myrdal to Carnegie-Myrdal Study researchers regarding collaboration with Horace R. Cayton, March 7, 1940Myrdal, Gunnar, 1898-1987correspondencetextSocial sciences--Research--PlanningSocial sciences--MethodologyAfrican Americans--ResearchChicago (Ill.)Cayton, Horace R. (Horace Roscoe), 1903-1970Raper, Arthur Franklin, 1899-1979Davis, Allison, 1902-1983Drake, St. Clair