MLA

Dellenbaugh, Frederick Samuel, 1853-1935. Arizona. Box 3, folder 84. n.d.. https://collections.library.yale.edu/catalog/2018225.

APA, 6th edition

Dellenbaugh, Frederick Samuel, 1853-1935. (["Box 3, folder 84"])(n.d.)[Arizona]. https://collections.library.yale.edu/catalog/2018225.