Notes and drawings, holograph
MLA
O'Neill, Eugene, 1888-1953. Notes and drawings, holograph. Box 58, folder 1162. 1940, n.d.. https://collections.library.yale.edu/catalog/11809521.
APA, 6th edition
O'Neill, Eugene, 1888-1953. (["Box 58, folder 1162"])(1940, n.d.)[Notes and drawings, holograph]. https://collections.library.yale.edu/catalog/11809521.