Whittier, John G.
MLA
Marsh, Othniel Charles, 1831-1899. Whittier, John G.. Box 35, folder 1503A. 1856. https://collections.library.yale.edu/catalog/32570533.
APA, 6th edition
Marsh, Othniel Charles, 1831-1899. (["Box 35, folder 1503A"])(1856)[Whittier, John G.]. https://collections.library.yale.edu/catalog/32570533.