Cite

[Fanny and Emil on summit of Sentinel Dome in midwinter, Yosemite National Park]. A15

MLA

[Fanny and Emil on Summit of Sentinel Dome in Midwinter, Yosemite National Park]. A15. 0AD. https://collections.library.yale.edu/catalog/2017044.

APA, 6th edition

[Fanny and Emil on summit of Sentinel Dome in midwinter, Yosemite National Park]. A15. (0 C.E.). [Lantern slides, Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2017044.