MLA

Marsh, Othniel Charles, 1831-1899. A. J. Johnson Comnany. Box 18, folder 726. 1894. https://collections.library.yale.edu/catalog/32561173.

APA, 6th edition

Marsh, Othniel Charles, 1831-1899. (["Box 18, folder 726"])(1894)[A. J. Johnson Comnany]. https://collections.library.yale.edu/catalog/32561173.