Very early draft, holograph, corrected (in Series III)
MLA
O'Neill, Eugene, 1888-1953. Very early draft, holograph, corrected (in Series III). Box 142, folder 2520-2523. 1940 Sep 20. https://collections.library.yale.edu/catalog/2014177.
APA, 6th edition
O'Neill, Eugene, 1888-1953. (["Box 142, folder 2520-2523"])(1940 Sep 20)[Very early draft, holograph, corrected (in Series III)]. https://collections.library.yale.edu/catalog/2014177.