Sert, Misia
MLA
Koch, Frederick R. (Frederick Robinson). Sert, Misia. Box 49, folder 1020. [1919 May 5]. https://collections.library.yale.edu/catalog/16601857.
APA, 6th edition
Koch, Frederick R. (Frederick Robinson). (["Box 49, folder 1020"])([1919 May 5])[Sert, Misia]. https://collections.library.yale.edu/catalog/16601857.