MLA

Marsh, Othniel Charles, 1831-1899. Brooks, Noah. Box 4, folder 154. 1881. https://collections.library.yale.edu/catalog/32553910.

APA, 6th edition

Marsh, Othniel Charles, 1831-1899. (["Box 4, folder 154"])(1881)[Brooks, Noah]. https://collections.library.yale.edu/catalog/32553910.