Thomas, N.G
MLA
Marsh, Othniel Charles, 1831-1899. Thomas, N.G. Box 32, folder 1371. 1889. https://collections.library.yale.edu/catalog/32568809.
APA, 6th edition
Marsh, Othniel Charles, 1831-1899. (["Box 32, folder 1371"])(1889)[Thomas, N.G]. https://collections.library.yale.edu/catalog/32568809.