MLA

Gilman, Daniel C. (Daniel Coit), 1831-1908. Gilman, Sisters. Box 3, folder 177. 1846. https://collections.library.yale.edu/catalog/32523481.

APA, 6th edition

Gilman, Daniel C. (Daniel Coit), 1831-1908. (["Box 3, folder 177"])(1846)[Gilman, Sisters]. https://collections.library.yale.edu/catalog/32523481.