MLA

Clésinger-Sand, Solange, 1828-1899. Tissier, A.. Box 2, folder 60. 1892 June 18. https://collections.library.yale.edu/catalog/17444492.

APA, 6th edition

Clésinger-Sand, Solange, 1828-1899. (["Box 2, folder 60"])(1892 June 18)[Tissier, A.]. https://collections.library.yale.edu/catalog/17444492.