MLA

Clésinger-Sand, Solange, 1828-1899. [Journal], fragments. Box 3, folder 105. undated. https://collections.library.yale.edu/catalog/17444508.

APA, 6th edition

Clésinger-Sand, Solange, 1828-1899. (["Box 3, folder 105"])(undated)[[Journal], fragments]. https://collections.library.yale.edu/catalog/17444508.