Unidentified
MLA
Dellenbaugh, Frederick Samuel, 1853-1935. Unidentified. Box 5, folder 163-167. 1907, n.d.. https://collections.library.yale.edu/catalog/2025508.
APA, 6th edition
Dellenbaugh, Frederick Samuel, 1853-1935. (["Box 5, folder 163-167"])(1907, n.d.)[Unidentified]. https://collections.library.yale.edu/catalog/2025508.