Cite

[Photograph of Siegfried Sassoon sitting on a sofa with a pipe]

MLA

[Photograph of Siegfried Sassoon Sitting on a Sofa with a Pipe]. 0AD. https://collections.library.yale.edu/catalog/2012303.

APA, 6th edition

[Photograph of Siegfried Sassoon sitting on a sofa with a pipe]. (0 C.E.). [Photographic prints, Photographs]. https://collections.library.yale.edu/catalog/2012303.