Cite

The Cathedral Rocks in lower Yosemite Valley. A43

MLA

The Cathedral Rocks in Lower Yosemite Valley. A43. 0AD. https://collections.library.yale.edu/catalog/2017221.

APA, 6th edition

The Cathedral Rocks in lower Yosemite Valley. A43. (0 C.E.). [Lantern slides, Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2017221.