Cite

Verso, bottom: Copy photograph of a portrait of a man in uniform

MLA

Johnston, William Walker Whitehall, 1835-1886. Verso, bottom: Copy photograph of a portrait of a man in uniform. Box 1, folder 11. circa 1858. https://collections.library.yale.edu/catalog/10944319.

APA, 6th edition

Johnston, William Walker Whitehall, 1835-1886. (["Box 1, folder 11"])(circa 1858)[Verso, bottom: Copy photograph of a portrait of a man in uniform]. https://collections.library.yale.edu/catalog/10944319.