Beck, William
MLA
Marsh, Othniel Charles, 1831-1899. Beck, William. Box 3, folder 82. 1886-1887. https://collections.library.yale.edu/catalog/32210145.
APA, 6th edition
Marsh, Othniel Charles, 1831-1899. (["Box 3, folder 82"])(1886-1887)[Beck, William]. https://collections.library.yale.edu/catalog/32210145.