Cite

[Fanny and Emil at stone shelter erected by the Smithsonian Institute in 1905 on the summit of Mt. Whitney]. A78

MLA

[Fanny and Emil at Stone Shelter Erected by the Smithsonian Institute in 1905 on the Summit of Mt. Whitney]. A78. 1923. https://collections.library.yale.edu/catalog/2017269.

APA, 6th edition

[Fanny and Emil at stone shelter erected by the Smithsonian Institute in 1905 on the summit of Mt. Whitney]. A78. (1923). [Lantern slides, Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2017269.