MLA

Marsh, Othniel Charles, 1831-1899. Pamphlets on Indians. Box 52, folder 27. 1868. https://collections.library.yale.edu/catalog/32510586.

APA, 6th edition

Marsh, Othniel Charles, 1831-1899. (["Box 52, folder 27"])(1868)[Pamphlets on Indians]. https://collections.library.yale.edu/catalog/32510586.