MLA

Gilman, Daniel C. (Daniel Coit), 1831-1908. Kendrick, Green. Box 1, folder 82a. 1856. https://collections.library.yale.edu/catalog/32522609.

APA, 6th edition

Gilman, Daniel C. (Daniel Coit), 1831-1908. (["Box 1, folder 82a"])(1856)[Kendrick, Green]. https://collections.library.yale.edu/catalog/32522609.