Exhibition of the art of the American Negro (1851 to 1940) assembled by the American Negro Exposition, on view July 4 to September 2, 1940, Tanner Art Galleries.
MLA
American Negro Exposition (1940 : Chicago, Ill.). Exhibition of the art of the American Negro (1851 to 1940) assembled by the American Negro Exposition, on view July 4 to September 2, 1940, Tanner Art Galleries.. 1940. https://collections.library.yale.edu/catalog/16394250.
APA, 6th edition
American Negro Exposition (1940 : Chicago, Ill.). (1940)[Exhibition of the art of the American Negro (1851 to 1940) assembled by the American Negro Exposition, on view July 4 to September 2, 1940, Tanner Art Galleries.]. https://collections.library.yale.edu/catalog/16394250.