Brown, S.G.
MLA
Marsh, Othniel Charles, 1831-1899. Brown, S.G.. Box 5, folder 173. 1869-1870. https://collections.library.yale.edu/catalog/32554225.
APA, 6th edition
Marsh, Othniel Charles, 1831-1899. (["Box 5, folder 173"])(1869-1870)[Brown, S.G.]. https://collections.library.yale.edu/catalog/32554225.