MLA

Gilman, Daniel C. (Daniel Coit), 1831-1908. Gibbs, Josiah. Box 1, folder 64. 1879. https://collections.library.yale.edu/catalog/32522602.

APA, 6th edition

Gilman, Daniel C. (Daniel Coit), 1831-1908. (["Box 1, folder 64"])(1879)[Gibbs, Josiah]. https://collections.library.yale.edu/catalog/32522602.