Cite

[Photograph of a man with a moustache]

MLA

Fox & Symons (Firm). [Photograph of a man with a moustache]. Box 1, folder 3. circa 1860-1880. https://collections.library.yale.edu/catalog/2015266.

APA, 6th edition

Fox & Symons (Firm). (["Box 1, folder 3"])(circa 1860-1880)[[Photograph of a man with a moustache]]. https://collections.library.yale.edu/catalog/2015266.