Sert, Misia
MLA
Koch, Frederick R. (Frederick Robinson). Sert, Misia. Box 52, folder 1110. 1906-21. https://collections.library.yale.edu/catalog/16601859.
APA, 6th edition
Koch, Frederick R. (Frederick Robinson). (["Box 52, folder 1110"])(1906-21)[Sert, Misia]. https://collections.library.yale.edu/catalog/16601859.