Cite

[Copy photograph of a painting of Zion Canyon]

MLA

Dellenbaugh, Frederick Samuel, 1853-1935. [Copy photograph of a painting of Zion Canyon]. Box 2 | Folder 50. undated. https://collections.library.yale.edu/catalog/2017882.

APA, 6th edition

Dellenbaugh, Frederick Samuel, 1853-1935. (["Box 2 | Folder 50"])(undated)[[Copy photograph of a painting of Zion Canyon]]. https://collections.library.yale.edu/catalog/2017882.