MLA

MacDougal, D. T. The Colorado River at the Upper, or ""Line Mesa"". 0AD. https://collections.library.yale.edu/catalog/2018305.

APA, 6th edition

MacDougal, D. T. (0 C.E.). The Colorado River at the upper, or ""Line mesa"" [Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2018305.