MLA

Marsh, Othniel Charles, 1831-1899. 1859. Box 48, folder 14. 1859. https://collections.library.yale.edu/catalog/32571938.

APA, 6th edition

Marsh, Othniel Charles, 1831-1899. (["Box 48, folder 14"])(1859)[1859]. https://collections.library.yale.edu/catalog/32571938.