MLA

Marsh, Othniel Charles, 1831-1899. 1853. Box 48, folder 8. 1853. https://collections.library.yale.edu/catalog/32571852.

APA, 6th edition

Marsh, Othniel Charles, 1831-1899. (["Box 48, folder 8"])(1853)[1853]. https://collections.library.yale.edu/catalog/32571852.