MLA

Marsh, Othniel Charles, 1831-1899. Petich, Louis. Box 25, folder 1058. 1898. https://collections.library.yale.edu/catalog/32565012.

APA, 6th edition

Marsh, Othniel Charles, 1831-1899. (["Box 25, folder 1058"])(1898)[Petich, Louis]. https://collections.library.yale.edu/catalog/32565012.