MLA

Dellenbaugh, Frederick Samuel, 1853-1935. The wonderful Temple Butte marking entrance to Little Zion - summit 7500 ft above sea level.. Box 2 | Folder 50. 1903. https://collections.library.yale.edu/catalog/2017874.

APA, 6th edition

Dellenbaugh, Frederick Samuel, 1853-1935. (["Box 2 | Folder 50"])(1903)[The wonderful Temple Butte marking entrance to Little Zion - summit 7500 ft above sea level.]. https://collections.library.yale.edu/catalog/2017874.