Draft, holograph, corrected (photostat)
MLA
O'Neill, Eugene, 1888-1953. Draft, holograph, corrected (photostat). Box 42, folder 911. n.d.. https://collections.library.yale.edu/catalog/2012085.
APA, 6th edition
O'Neill, Eugene, 1888-1953. (["Box 42, folder 911"])(n.d.)[Draft, holograph, corrected (photostat)]. https://collections.library.yale.edu/catalog/2012085.