"List of all plays ever written by me, including those I later destroyed, giving where and when they were written," holograph, in notebook
MLA
O'Neill, Eugene, 1888-1953. "List of all plays ever written by me, including those I later destroyed, giving where and when they were written," holograph, in notebook. Box 77, folder 1429. n.d.. https://collections.library.yale.edu/catalog/2014168.
APA, 6th edition
O'Neill, Eugene, 1888-1953. (["Box 77, folder 1429"])(n.d.)["List of all plays ever written by me, including those I later destroyed, giving where and when they were written," holograph, in notebook]. https://collections.library.yale.edu/catalog/2014168.