Kassandra, holograph
MLA
Miłosz, Czesław, 1911-2004. Kassandra, holograph. Box 91, folder 1271. undated. https://collections.library.yale.edu/catalog/10079611.
APA, 6th edition
Miłosz, Czesław, 1911-2004. (["Box 91, folder 1271"])(undated)[Kassandra, holograph]. https://collections.library.yale.edu/catalog/10079611.